What size exhaust do you guys recommend. I have a near stock 289 bored a little, and a very very mild cam. I'm thinking 2 1/2 or 2 1/4. what do you guys think. oh yeah. A performer intake, with a demon 650 or 625 carb.
Either of those sounds fine to me. I'm actually getting ready to put a new exhaust system on my dead stock, unrebuilt 2bbl 289, and I'm going with 2.5" because I've got a nice selection of mufflers, and a cheap H-pipe kit. Besides, it'll be just perfect when the 340hp 5.0 goes in