05-13-2003, 11:33 AM

74Grandville 74Grandville is offline

Ultimate Warrior

Join Date: Mar 2003

Location: Plainville, CT

Posts: 1,847

I have a 79 T/A and i'm trying to deside what size exhaust to get.

I have a 462

#62 heads lightly ported
KB pistons 9.5-1 compression
stock 44bl intake
44bl Quadrajet
cam close to 068 with 1.65 roler tip
hedman 1 3/4 headers

This engine will be a strickly street use car.

I would like good air flow, but don't want to hurt my back pressure.

Will 2.5 be enough? I was thinking 3" because of a chart p-dude has on this website.

__________________
1979 Firebird Trans Am 301/4spd (Now 428)
1977 Firebird Formula 400/Auto
2007 Grand Prix GXP 5.3L

Reply With Quote

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 03:42 PM.

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

Menu

About Us