what kinda carb needed?
Thread Starter
|
Senior User
Joined: Jun 2000
Posts: 234
Likes: 0
what kinda carb needed?
at the moment i have a 600 cfm holley 4brl with vaccum secondaries. but it backfires through the carb when i step down on it when it cold. i called holley and they said to get a bigger pump cam and power valve. instead i'm thinking of just returning the carb and going back to a 2brl.
lr
lr
New User
Joined: Jun 2000
Posts: 18
Likes: 0
what kinda carb needed?
get rid of vacum secondaries go mechanicle and also it might be that you need to advance your timing cause you now have a four barrel on it i have a 400m with a 650 holley double pumper and it works great.
Thread
Thread Starter
Forum
Replies
Last Post
quadracer173
1987 - 1996 F150 & Larger F-Series Trucks
57
Dec 18, 2021 08:41 PM
Lead_Pusher
Fuel Injection, Carburetion & Fuel System
3
Nov 16, 2009 07:58 AM
