Racingjunk Forums

Racingjunk Forums (
-   Carburetion, Induction, Nitrous (
-   -   what size carb? (

fstbackgt68 05-18-2007 03:31 AM

what size carb?
I have a 302 with about 350 - 400 horsepower. I am gonig to be daily drving this car and once in awhile down at the track. I was looking at getting a holley street avenger 670. What do you guys think?

edvancedengines 05-18-2007 04:32 AM

650 to 750 vacuum secondary carb.


cepx111 05-18-2007 10:35 PM

I had 650 double pumper on my stout 302 I had in a 63 falcon that was a screamer on and off the track.
I would recommend a smaller carb like the 650 dp or the 670 vacuum secoundary, they will give you great throttle response which will come in handy at the track footbraking or running in a dot class for them killer reaction times, but a bigger carb like the 750 or the 770 wont be quite as responsive but will give you more top end hp. Charles

lively 05-19-2007 03:36 AM

vacuum secondaries on the street!!!!-----you can change if you don't like it when you drag race it 8)

bryanm 05-21-2007 02:25 PM

I had a similar 302 in my mustang a long time ago and I used a 625 Demon and it worked great and never gave me any troubles at all.

All times are GMT -8. The time now is 11:36 PM.