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Thread: Help with jetting...

  1. #1

    Help with jetting...

    I just picked up an S-10 with the following engine combo, and it starts and runs but loads up if it sits for any time at all. Can I jet it down and take care of this? I would like to keep the carb thats on it, I believe it has the stock #73 jets on both ends...what would you recommend? Thanks

    383 stroker with around 450hp...The block is a 010 4 bolt main. Internally balanced bored and honed with torc plates .30 over. Steel crank.CA rods all ARP bolts. Block was sonic checked. New style Vortec heads.hyd lifters. Comp cam custom ground 512 lift.comp valve springs. Double row timing chain. Melling high volume oil pump. True 10 3/4 comp almost 11.1.Speed pro hypereutectic pistons with coated skirts. Polished Aluminum fabricated valve covers. Milodon 7 qt oil pan. Elebrock aluminum water pump. Holley 4150 series 950hp.Polished aluminum intake Hurricane. Aluminum pulleys. Griffin radiator. Sanderson ceramic coated headers.

  2. #2
    Senior Member DYNO TECH
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    Feb 2004
    Location
    Leonard, Texas
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    414
    Running power valves, yes or no?
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  3. #3
    Yes..I believe its all stock internally. ops:

  4. #4
    Senior Member DYNO TECH
    Join Date
    Feb 2004
    Location
    Leonard, Texas
    Posts
    414
    May have popped one. If your just racing this thing, I would recommend blocking them off front and rear and stepping the jets up about 78 to start. Then go up or down from there. Probably won't need to go up more than that with your engine. If your street driving, replace the power valves and leave the jets alone. I would sure try to get a smaller carb, 750 would be perfect.
    'A government big enough to give you everything you want, is big enough to take away everything you have.'

    Thomas Jefferson


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