Cams
I know comp says you can use the stock converter. Dont believe it. Especially if you have 3.23 gears. Even with perfect carbueretion and ignition timing, youre not gonna come out of the hole screaming. I went with a xe 268 on a similar build (mostly stock, performer intake, replacement edelbrock 650) and a 2500 converter. Finally swapped the 3.23's to 3.73. much better. Stock heads and exhaust manifolds Im guessing? Tell us about your build.