Throttle stop carbs, any problems ?

Old 02-01-2014, 09:28 PM
Senior Member
Thread Starter
Join Date: Jan 2004
Location: central Illinois
Posts: 459
Default Throttle stop carbs, any problems ?

Any problem using a Dominator carburetor modified for throttle stop racing as a regular bracket race carb?

Most I see have had intermediate circuit work to be crisp when coming back off the stop. Wouldn't that be good for a regular use carb too?

I see conversions from 3 circuit to 2 circuit. What is the difference in that from a throttle stop intermediate circuit modification?

What else is done to a name brand throttle stop carb and does anything else effect its use for wide open use?

How about with a E-Z-Plate restrictor plate system?
markdunlap is offline  
Old 02-02-2014, 06:35 PM
Senior Member
jmarksdragster's Avatar
Join Date: Jul 2007
Location: Florida
Posts: 635

Most of the time a correctly tuned 2 circuit Dominator works just fine for both bracket racing and throttle stop use. The only time it might be an issue is with an under carb stop with the throttle blades closed too far, too low of an RPM for the boosters to have a stable signal. With the carb blades at WOT and the stop blades partially closed the transition metering isn't supplying much if any fuel at that point either. I have had only one time that I've had someone with that issue, and I'm not entirely sure the carb was the problem. In that event a small amount of intermediate fuel might help. The boosters I use provide a better signal than standard Holley inserts, so even at lower RPM they still feed well. On a car with an inline stop I would have external linkage set up for 1 to 1, and with the carbs throttle blades functioning normally a 2 circuit would be my only choice.

As far as the EZ plate, I would size the carb to closer match the largest restriction, but a good Dominator should work if the engine can handle a Dominator.

As far as what others do, most I have reworked have the intermediate circuit way to rich for any engine, so hard to say what their throttle stop mods are...
jmarksdragster is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -