Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - is back fireing normal for cold motor
View Single Post
  #4 (permalink)  
Old 08-06-2011, 01:10 PM
ericnova72's Avatar
ericnova72 ericnova72 is offline
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,388
Wiki Edits: 0

Thanks: 29
Thanked 469 Times in 426 Posts
Quote:
Originally Posted by 63chevy
i un hooked the choke simply i dont drive it when its really cold
ok so your saying bigger jets/smaller or main valve in carb??
No, not bigger jets or power valve changes. Change the accelerator pump nozzles(shooters) to a larger size, and you may possibly also need to put on larger pump cams(the plastic cam that moves the accelerator pump arm when you open the throttle).

This is a Holley carb we are talking about? You said 830 cfm and that is a Holley size, so I just assumed.
Reply With Quote