i didn't realize 30+ rwhp was just a few. i went from 228 to 256 swapping to my thumpers from stock e7's, and it should/will be more once i get my a/f figured out. like i said earlier, if you can afford to go aluminum definitely do it, otherwise porting your stock heads can and will net you more of a HP increase than swapping to untouched gt40's even. now porting a set of gt40's is a whole other deal. for the sake of this debate i'm referring to UNTOUCHED gt40's.
^^yea the only thing you have to consider is if he cant port himself,your gonna spend maybe $60-$100 bucks on e7's used and from wat i read in muscle mustangs getting them ported and cleaned by thumper you end up spending $450- $500 another $500 and you have aluminum heads that save 25lbs on each side and flow the same if not better than ported e7's. Not trying to argue with you or anything
