429 BB Carb Help
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Freshman User
Joined: Jan 2009
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429 BB Carb Help
Hello everyone,
I just had my 429 big block bored out .06 over to a 441ci, and the compression is 9:1, so I run midgrade gas. We put a mild cam in it and basically left it stock. My question is this: I have a Holley 4 barrel carb, model 4011. Supposedly the carb is an offroad carb, but I'm using the engine in a street truck, so idk if this type of carb is ok for a street engine. Second, what do I need to do to tune this carb to work at peak performance with this engine? Do I need to jet it differently, adjust something or what? I was considering a rebuild kit, but i'm not sure it will cover what I need to do???
Thanks for the input,
Seth H
P.S. Here a link to the carb kit and some tuning stuff on thier website: Holley Performance Products Renew Kit Carburetor Rebuild Kit*37-1541
I just had my 429 big block bored out .06 over to a 441ci, and the compression is 9:1, so I run midgrade gas. We put a mild cam in it and basically left it stock. My question is this: I have a Holley 4 barrel carb, model 4011. Supposedly the carb is an offroad carb, but I'm using the engine in a street truck, so idk if this type of carb is ok for a street engine. Second, what do I need to do to tune this carb to work at peak performance with this engine? Do I need to jet it differently, adjust something or what? I was considering a rebuild kit, but i'm not sure it will cover what I need to do???
Thanks for the input,
Seth H
P.S. Here a link to the carb kit and some tuning stuff on thier website: Holley Performance Products Renew Kit Carburetor Rebuild Kit*37-1541
Senior User
Joined: Aug 2005
Posts: 237
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Go buy a new 670cfm Holley Avenger carb for your 429ci, I used one on my stock 460ci and it worked a treat..... if you want to go bigger get the 750cfm avenger carb, but i think the 670cfm would suit your engine as 9-1 compression, good luck.
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