Help me choose the right carb size!!

This is my setup:

80 Camaro
350 .040 over
10:1 compr.
Ported Vortec heads w/ 1.6 rollers
Comp XE268H cam
RPM Air Gap
2400 Holeshot conver.
TH350 w/ shift kit
3.73 gears

I'm going with a Holley Avenger... just trying to decide between a 670 or 770 cfm.
This will be a street car, but not a daily driver. It will be spun to about 6500 rpm's. Thanks

Honestly I dont think you could go wrong with either of thsoe cfm's. If you arent gonna drive it everyday, I would go with the bigger one.

I'd suggest you go for the 770. That combo is going to be making some power, and I'd say the 670 will be a bit small for this application.

BTW - your gonna love those Vortec heads. ;)

Originally posted by CamSS
This is my setup:

80 Camaro
350 .040 over
10:1 compr.
Ported Vortec heads w/ 1.6 rollers
Comp XE268H cam
RPM Air Gap
2400 Holeshot conver.
TH350 w/ shift kit
3.73 gears

I'm going with a Holley Avenger... just trying to decide between a 670 or 770 cfm.
This will be a street car, but not a daily driver. It will be spun to about 6500 rpm's. Thanks I would go with the 770 with that combination but for the money you will spend on the Avenger I would go with a Speed Demon. They are not much more then the Avenger.