Help me choose the right carb size!!

Reply Subscribe

Thread Tools

Search this Thread

Nov 15, 2003 | 10:32 PM

CamSS

Thread Starter

Registered User

Joined: Jun 1999

Posts: 2

From: Mobile, Al.

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

Nov 15, 2003 | 11:22 PM

DarthIROC

Registered User

Joined: Aug 2002

Posts: 1,291

From: Teeter-tottering between Brilliance and Insanity

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.

Nov 16, 2003 | 03:13 AM

Dirt Reynolds

Registered User

Joined: Jan 2003

Posts: 398

From: Surrey, BC

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.

Nov 16, 2003 | 07:45 PM

Chads71camaro

Registered User

Joined: Jul 2003

Posts: 31

From: candler n.c.

Re: Help me choose the right carb size!!

Quote:

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.