{"id":37022,"date":"2017-02-24T10:56:15","date_gmt":"2017-02-24T18:56:15","guid":{"rendered":"http:\/\/www.racingjunk.com\/news\/?p=37022"},"modified":"2017-02-24T10:56:15","modified_gmt":"2017-02-24T18:56:15","slug":"installing-the-holley-sniper-efi-kit","status":"publish","type":"post","link":"https:\/\/www.racingjunk.com\/news\/installing-the-holley-sniper-efi-kit\/","title":{"rendered":"Installing the Holley Sniper EFI Kit"},"content":{"rendered":"<p class=\"jetpack-slideshow-noscript robots-nocontent\">This slideshow requires JavaScript.<\/p><div id=\"gallery-37022-1-slideshow\" class=\"jetpack-slideshow-window jetpack-slideshow jetpack-slideshow-black\" data-trans=\"fade\" data-autostart=\"1\" data-gallery=\"[{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/550-510_01.jpg&quot;,&quot;id&quot;:&quot;37024&quot;,&quot;title&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Click Here to Begin Slideshow\\n\\nI\\u2019ve been a Holley fan since I could say the word \\u201ccarburetor\\u201d correctly, so it\\u2019s no surprise when I say that one of my favorite manufacturers of electronic fuel injection systems is Holley. If you\\u2019ve been around long enough to read my article comparing fuel injection and carburetion, you know that for true hot rod looks and sound, I still prefer a high CFM carburetor over fuel injection. \\n\\nHowever, Holley\\u2019s Sniper Self-Tuning TBI EFI unit kicks all my pro-carb arguments in the teeth. At first glance, it looks like a carb, and stomping on the pedal is going to give you that \\u201csecondaries opening WAAAAAAHHHHH!\\u201d that a nice four barrel carburetor gives. I took a look at one recently, and now I\\u2019m going to tell you about it and then show you how simple it is to install. Basically: If you can install a carb and crimp wires correctly, you can install the Sniper EFI.\\n\\nHolley\\u2019s Sniper EFI Master Kit with Fuel comes with everything you see here.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/ECU-Location.jpg&quot;,&quot;id&quot;:&quot;37035&quot;,&quot;title&quot;:&quot;What Is It?&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;When buying the Holley Sniper EFI kit, you\\u2019ve got two basic options. The first option is to just buy the injector body and the controller with the wiring harness and sensors. This runs in the area of $1000 and has everything you need for a basic install on almost any vehicle equipped with a four barrel carb. I recommend popping for the Master Kit, though. On top of the injector body, wiring, controller, and sensors, it contains stuff to upgrade your fuel system so you can produce power \\u0026#8211; new universal electric fuel pump, connectors, and filters. This is the way to go if you want to produce power.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/7-Pin-Harness.jpg&quot;,&quot;id&quot;:&quot;37023&quot;,&quot;title&quot;:&quot;The 7-Pin Harness&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;The injector body looks almost exactly like a carburetor at first glance. It comes in the old style brass satin finish, a shiny gloss finish or a black finish. There\\u2019s a three inch color touchscreen controller that mounts in the passenger compartment, where you can see and reach it to control the EFI functions. All told, installation should take you no more than two hours, less than that if you\\u2019ve got a friend to help you out.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Assembling-an-AN-Adapter.jpg&quot;,&quot;id&quot;:&quot;37025&quot;,&quot;title&quot;:&quot;Gather Tools and Prep for Installation&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Refer to this image for assembling the EFI fuel hose to the -AN adapters. You\\u2019ll need to do this at both ends of the return line and the EFI side of the supply.\\n\\nYou\\u2019ll need plain and Phillips screwdrivers, as well as sockets, ratchets, extensions and wrenches. You\\u2019ll also want a pair of wire cutters and a good set of wire crimpers. Don\\u2019t use the crappy five dollars crimpers available at parts stores. Spend the extra five to ten bucks to get a quality set of crimpers. You\\u2019ll also need a drill and a stepper bit, and a hammer and a sharp brass punch will come in quite handy. Lastly, you\\u2019ll need something to test for the presence of voltage, such as a test light or meter.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Disconnect-Battery.jpg&quot;,&quot;id&quot;:&quot;37033&quot;,&quot;title&quot;:&quot;First, Disconnect the Battery&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Block the front wheels and jack up the rear of the car, being sure to use at least one jack stand for safety. Finally, drop and drain the fuel tank. There are usually two straps that secure the fuel tank. If it\\u2019s full, use a jack to lower it. \\n\\nThe Holley Sniper EFI Unit has two main wiring harnesses. One of these is a ten-wire harness and the other is a seven wire harness. The ten-wire harness controls advanced functions of the Sniper EFI and will not be used in this installation, but will be addressed in a later How-To piece.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Remove-the-Carb.jpg&quot;,&quot;id&quot;:&quot;37048&quot;,&quot;title&quot;:&quot;Remove the Air Cleaner and Carburetor&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Holley says you should install the fuel line, pump and filters first, but I prefer to start by removing the carb so that you have some leeway with the fuel line. Pull the air cleaner. Remove the fuel line from the fuel inlet on the carburetor and, if it\\u2019s a rubber line, pinch it off to keep it from leaking and to keep debris from entering the system. Next, remove and cap any vacuum lines, and then disconnect the transmission kickdown (if there is one) and the throttle cable and move it out of your way. Finally, remove the four nuts that secure the carburetor to the intake manifold and remove the carburetor.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Remove-Throttle-Kickdown.jpg&quot;,&quot;id&quot;:&quot;37049&quot;,&quot;title&quot;:&quot;Remove the Throttle and Kickdown&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Mount-the-EFI.jpg&quot;,&quot;id&quot;:&quot;37044&quot;,&quot;title&quot;:&quot;Mount the New Fuel Injection Unit&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Make sure the mounting surface on the intake manifold is free of any debris and gasket remnants. Place the gasket over the mounting studs and then set the EFI unit over the studs. Install one washer and nut from the kit on the studs and tighten them in a crossing pattern. The kit also includes studs that you may need to use if the ones already installed aren\\u2019t long enough. Attach the throttle and kickdown cables to the EFI unit. You may need to transfer these from the carburetor.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Throttle-Kickdown.jpg&quot;,&quot;id&quot;:&quot;37052&quot;,&quot;title&quot;:&quot;Attach Throttle and Kickdown Cables&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Note: The EFI unit must be installed with the pressure regulator on the passenger side and to the rear of the engine.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Vacuum-Lines.jpg&quot;,&quot;id&quot;:&quot;37054&quot;,&quot;title&quot;:&quot;Connect the Vacuum Lines&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Drain-Tank.jpg&quot;,&quot;id&quot;:&quot;37034&quot;,&quot;title&quot;:&quot;Install the Pump and Filters&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;With the vehicle in the air, remove the fuel outlet line and drain the fuel into gas cans. \\n\\nNote: If your vehicle already has a high volume\\\/high pressure electric fuel pump, install the pre-filter before this pump and the post-filter after it.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Fill-Overflow.jpg&quot;,&quot;id&quot;:&quot;37037&quot;,&quot;title&quot;:&quot;Disconnect Hoses&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Remove-Tank.jpg&quot;,&quot;id&quot;:&quot;37047&quot;,&quot;title&quot;:&quot;Remove the Tank&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Once the tank is drained, remove the strap(s) securing it and lower it out of the vehicle.\\n\\nInstall the new fuel pump and filters as close as possible to the fuel tank. Make sure to put the pre-filter between the pump and tank. Also, be sure that the pump is below the bottom of the tank and that the directional arrows (inlet and outlet on all three) are properly oriented. Secure all three to the body or frame with the included brackets.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Mount-the-Pump.jpg&quot;,&quot;id&quot;:&quot;37045&quot;,&quot;title&quot;:&quot;Mount the Pump&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Mount the fuel pump somewhere close to the tank, preferably on the frame. \\n\\nUse a pipe cutter to cut out a section of the hard pipe under the car, just in front of the axle. Use a pipe flaring tool to roll beads into both ends of the resulting lengths of pipe. Clamp a three inch section of fuel line between the pre-filter outlet and the inlet of the pump, then another between the pump outlet and the post filter outlet. Finally, clamp a short section of fuel line to the post-filter and hard line leading to the front of the vehicle.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Fuel-Pump-Block-Off.jpg&quot;,&quot;id&quot;:&quot;37038&quot;,&quot;title&quot;:&quot;Install Fuel Pump Block-Off Cover&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Locate the mechanical fuel pump on your engine block. Using line wrenches (preferably), remove the hard line fuel connections at the pump and disconnect the low pressure line from the pump. Remove the line\\\/hose between the pump and the old carburetor and as much of the line leading to the fuel tank as you can. \\n\\nRemove the bolts\\\/nuts securing the mechanical pump to the block and clean the gasket off. Apply a light film of sealant to the block-off cover and install it using the nuts\\\/bolts that secured the mechanical pump in place. \\n\\nNote: This isn\\u2019t a required step. All you have to do is bypass the mechanical pump, although removing it will help gain a horsepower or two due to decreased friction.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Barbed-Nipples-in-Pump.jpg&quot;,&quot;id&quot;:&quot;37026&quot;,&quot;title&quot;:&quot;Make Fuel and Return Line Connections at the Fuel Tank&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Route a section of fuel line from the inlet of the pre-filter to the outlet of the fuel pickup on the tank. Make sure you leave a little slack in the line, but not enough to kink the line when you put the tank back in place. Route a section of fuel line, from the area of the fuel tank pickup assembly, up to the EFI unit. Make sure you avoid pinch points, moving parts and heat sources. Use rubber-covered clamps to secure it every two feet or so to the body or frame of the vehicle.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Connecting-Pre-Filter-Pump.jpg&quot;,&quot;id&quot;:&quot;37030&quot;,&quot;title&quot;:&quot;Connect Pre-Filter and Pump&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Remove the pickup\\\/sending unit assembly. Look at the assembly to locate a spot where you can install the return line bulkhead fitting so it won\\u2019t interfere with the sending unit float. Use the brass punch to locate the hole and drill a 9\\\/16 hole with the stepper bit. Use a file or rasp to deburr this hole completely. If your sending unit cover isn\\u2019t big enough to accommodate the bulkhead adapter, fill the tank with water, then drain and dry it and install the adapter through the side of the tank near the cover assembly. Be sure to keep the filings out of the tank.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Installing-Return-Bung-in-Tank.jpg&quot;,&quot;id&quot;:&quot;37041&quot;,&quot;title&quot;:&quot;Install Return Bung&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Install the return line bung in the fuel tank. Rinse and dry the tank well before doing this.\\n\\nUsing the Stat-O Seals (rubberized washers) and nuts, install the return line bulkhead fitting in the pickup assembly. Install a barbed-to-AN adapter by first sliding the collar over the fuel line and then pressing the line onto the adapter all the way, and sliding the collar up until it slides into place next to the adapter. Connect a section of fuel line to the pickup assembly outlet. Reinstall the fuel tank and make the final fuel line connection to the pre-filter, being sure to leave about two percent slack for expansion, contraction, and movement. Be sure you use fuel injection hose and clamps.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Connect-Return-Line-to-EFI.jpg&quot;,&quot;id&quot;:&quot;37031&quot;,&quot;title&quot;:&quot;Connect the Fuel Supply and Return Lines to the EFI Unit&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Clamp an -AN fitting to the EFI side of the both supply and return lines (see image near beginning of article). Route the supply line up to the fuel inlet of the EFI Unit, being sure to avoid pinch points, heat sources, etc. There are three fuel inlets you can choose from on the EFI unit, one at each corner, except the passenger rear corner which has the regulator and return line. Attach the -AN fitting on the line to the inlet on the EFI unit. Route the return line to the passenger side of the EFI unit and connect its -AN fitting to the EFI unit outlet.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Compression-Fitting.jpg&quot;,&quot;id&quot;:&quot;37027&quot;,&quot;title&quot;:&quot;Use a Compression Fitting&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;NOTE:  If you must make sharp 90 degree bends while installing the fuel line, you need to use 90 -AN fittings so as to not kink the fuel line. Kinking the fuel line will decrease the fuel volume flowing and decrease the line\\u2019s life expectancy. A \\u201csharp 90 degree\\u201d is defined as any that causes the fuel line to bend in such a way that the ends of the bend are less than six inches apart.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Install-O2-Sensor.jpg&quot;,&quot;id&quot;:&quot;37042&quot;,&quot;title&quot;:&quot;Install the Oxygen Sensor&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Route the oxygen sensor cable from the EFI harness to the rear as far as it will go. Connect it to the O2 sensor and locate a spot on an exhaust pipe to mount it, preferably after the merge. You need it installed so it \\u201csniffs\\u201d the exhaust from at least one bank of cylinders, but preferably both, if possible. \\n\\nDrill a 9\\\/16 inch hole in the exhaust between ten and 45 degrees off the horizontal (this keeps condensate from damaging the sensor). Thread the O2 sensor into the bung and, placing the gasket between the bung and exhaust pipe, hold the bung against the pipe. Wrap the clamps around the bung and ensure the sensor is centered, then tighten the clamps to ensure no exhaust leaks. More recommendable would be to weld the bung to the pipe if you know how and have the equipment.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Temperature-Sensor.jpg&quot;,&quot;id&quot;:&quot;37051&quot;,&quot;title&quot;:&quot;Install the Coolant Temperature Sensor&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Wrap the coolant temperature sensor with Teflon tape or coat the threads with thread sealant of some sort. Locate a suitable spot in the water jacket to install the coolant temp sensor and route the two sensor connector to this location. Remove any plug or sensor from the temp sensor mounting location and install the temp sensor. Connect the harness to the sensor. If you have a temperature gauge, you\\u2019ll need to locate the sensor for it elsewhere, as the EFI coolant sensor should be mounted in the intake water jacket for optimal performance.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Touchscreen-Controller-Monitor.jpg&quot;,&quot;id&quot;:&quot;37053&quot;,&quot;title&quot;:&quot;Route the Wiring for the Touchscreen Control Pad&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;The touchscreen control pad isn\\u2019t an absolute necessity once the EFI is programmed and the vehicle is running, but it does allow you to do data logging and it does look cool in the passenger compartment.  Route the harness for it through the bulkhead using a grommet, one of which is supplied in the kit and requires a two inch hole in the bulkhead. The touchscreen should be installed where it is visible and can be safely reached while driving.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Connect-Ignition-Wire.jpg&quot;,&quot;id&quot;:&quot;37029&quot;,&quot;title&quot;:&quot;Make Ignition and Tachometer Wiring Connections&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Connect the seven pin harness to the seven pin connector from the EFI unit and route it towards the battery. Using your test light or meter, locate a power source that is on with the key in both the \\u201cRun\\u201d and \\u201cStart\\u201d positions. Connect the pink wire to this source using either a solderless butt splice or by soldering and covering with adhesive heatshrink tubing.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Connect-Tach-Lead.jpg&quot;,&quot;id&quot;:&quot;37032&quot;,&quot;title&quot;:&quot;Connect the Tach Lead&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Locate the yellow wire in the seven wire harness and route it to the negative side of the coil. Trim the excess. Strip and install a ring terminal from the kit and bolt it to the coil\\u2019s negative side. The green and purple wires are only used if you have a Capacitive Discharge ignition box, such as an MSD 6AL. If so, the yellow wire will not be used.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Wire-the-Pump.jpg&quot;,&quot;id&quot;:&quot;37055&quot;,&quot;title&quot;:&quot;Wire the Fuel Pump&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Note: If your vehicle has a high volume\\\/high pressure electric pump, you don\\u2019t need to worry about this section except to disconnect it and connect the power wires to the new pump. \\n\\nLocate the blue wire in the harness and route it towards the fuel pump. Unless you already have an electric fuel pump, you will also need to route a black wire for ground to the pump. Terminate the wires using ring terminals from the kit (heat sealing them with a lighter or heat gun) and connect them to the pump terminals. You can lower the vehicle off the stands now.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Power-Ground-to-Battery.jpg&quot;,&quot;id&quot;:&quot;37046&quot;,&quot;title&quot;:&quot;Make Battery Connections&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Route the black and red wires to the battery negative and positive terminals. Trim them to remove excess length and strip the ends. Install a suitable ring terminal, heat seal it to the red wire and bolt it to the battery positive. If you have a ground wire from the fuel pump, strip it and terminate it and the black wire from the harness in a suitable ring terminal, also heat sealing it, and then connect it to the battery negative cable end.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Mount-Relays.jpg&quot;,&quot;id&quot;:&quot;37043&quot;,&quot;title&quot;:&quot;Mount the Relays&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;There are two 40-amp relays in the seven-pin harness. One is for main power and the other one, with the blue wire for the fuel pump, is obviously for the fuel pump. These need to be mounted to the inner fenderwells near the battery with self-tapping screws.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Holley-Dual-Sync-Distributor.jpg&quot;,&quot;id&quot;:&quot;37039&quot;,&quot;title&quot;:&quot;Dual Sync Distributor Diagram&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Use this diagram if you have a Holley Dual Sync Distributor and external ignition box.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Config-Wizard.jpg&quot;,&quot;id&quot;:&quot;37028&quot;,&quot;title&quot;:&quot;Programming the EFI ECU for Your Engine&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Configuring the ECU begins with entering the Config Wizard on the touchscreen.\\n\\nOnce all wiring and fuel connections have been made and the throttle and kickdown cables are connected, it\\u2019s time to program the EFI\\u2019s ECU for your engine. Turn the key to \\u201cRun\\u201d and select \\u201cWizards\\u201d and the EFI model number you\\u2019re installing.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Starting-Setup.jpg&quot;,&quot;id&quot;:&quot;37050&quot;,&quot;title&quot;:&quot;Starting Setup&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;You will need to enter the following information:\\n\\n\\u2022\\tNumber of cylinders \\n\\u2022\\tEngine displacement in cubic inches\\n\\u2022\\tSet target idle (usually around750- 800 RPM)\\n\\u2022\\tType of cam (Street, strip)\\n\\u2022\\tPower adders being used\\n\\u2022\\tType of ignition being used&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Engine-Setup.jpg&quot;,&quot;id&quot;:&quot;37036&quot;,&quot;title&quot;:&quot;Engine Setup&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;Start the engine, let if idle for a minute or two, then rev it a few times. I would clean up most of my tools while I let the engine run so the ECU can learn idle parameters.&quot;,&quot;itemprop&quot;:&quot;image&quot;},{&quot;src&quot;:&quot;https:\\\/\\\/www.racingjunk.com\\\/news\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/Installation-Complete.jpg&quot;,&quot;id&quot;:&quot;37040&quot;,&quot;title&quot;:&quot;All Done!&quot;,&quot;alt&quot;:&quot;Installing the Holley SNIPER EFI Kit&quot;,&quot;caption&quot;:&quot;&quot;,&quot;itemprop&quot;:&quot;image&quot;}]\" itemscope itemtype=\"https:\/\/schema.org\/ImageGallery\"><\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>If you can install a carb and crimp wires correctly, you can install the Sniper EFI. <\/p>\n<\/div>","protected":false},"author":28,"featured_media":37024,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5028,3697,11,3470,4879],"tags":[1411,4892,2367,1513,4800,1074,41,4888],"class_list":["post-37022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fuel-delivery","category-galleries","category-how-tos","category-news","category-slideshow","tag-efi","tag-galleries","tag-holley-efi","tag-holley-performance-products","tag-how-tos","tag-mike-aguilar","tag-news","tag-slideshow"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2017\/02\/550-510_01.jpg","jetpack_shortlink":"https:\/\/wp.me\/p42YSK-9D8","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/37022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/comments?post=37022"}],"version-history":[{"count":1,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/37022\/revisions"}],"predecessor-version":[{"id":37056,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/37022\/revisions\/37056"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media\/37024"}],"wp:attachment":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media?parent=37022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/categories?post=37022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/tags?post=37022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}