You could stick with the stock displacement (351) and just go with AFR heads and a better cam and easily get 400HP. Then you could stroke it in the future if you are looking to get more power. Or, if you are set on a stroker, go with the AFR 185 or 205's. The Ford 392 crate engine makes over 400HP (430-450) and they use GT40x alum heads. They also use a Comp Xtreme Energy cam, and the intake is a copy of the Vic jr. single-plane with a Demon 750 carb. I've read articles that say you can get another 75+HP just from switching to the AFR185 heads (from the GT40x) on the crate 392.
.....Once you get used to the 400Hp, you'll want more!
