Carb Jets

69redvette · 02-18-02, 05:01 PM

I need to jet down my carb... plugs keep fouling. I heard there is a kit available to do this. Is this right? It's a Holley 750 double pumper. The motor is a 350 ci. Trick Flow Twisted Wedge aluminum heads and a .500" lift Comp Cams solid lifter cam. Any help is appreciated.

Joe

02-20-02, 08:09 AM

Look in the Summit or Jegs catalogs, they are also online. When you change the jets decrease or increase by 2, i.e. 48 to 46.... That way you get a better feel for the change. Remove your jets and check the number before you buy. One of the speed shops around here sells individual jets. So it's cheaper than getting a kit with sizes that are higher/lower than what you have.

69redvette · 02-20-02, 07:46 PM

Thanks KenSny. Will take your advice. Happy Motoring!

Jack · 02-22-02, 02:24 PM

Bob:

Take a look at the link ... its a very nice site on how tune Holley carbs.

http://www.bob2000.com/carb.htm

JACK

69redvette · 02-23-02, 04:52 PM

Jetted down from 72 to 67 and still runs fat on left side. Bowl is set right. Not fouling plugs, I least I don't think yet. Think I need to find a good Holley Guy. I'll drive for awhile and see what happens. Thanks to all.

P.S.
Felt real good to get out and drive on this great New York weather day!