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.