Hey guys this is my first post on this site whats up? I have a 1995 trans am with a brand new 383 stroker engine installed by Recon in Philadelphia. Problem is that they never sent out my heads to get ported and polished so as of right now my car is making 340hp and 380tq to the wheels on the 224/230 comp cam. The question I have is should I just spend the money on getting the Lt-4 aluminum heads ported and polished or buy like 220cc AFR Heads? Does anyone know the increase of hp you can see in those heads and can they be bolted right on? I am also looking to jump my cam up to either 230 or 236. Info would be appreciated I am looking to Make between 400 and 440hp.