i think an important question would be how do you want your powerband to look/feel? I think with our somwhat heavy cars a youll probably want something with a flat toque curve, so spinning it to 7000-7500RPM probably wouldnt be optimal but really its up to you. I think the best site to ask this question would be
http://www.460ford.com although i think theyre in love with stock heads over there a bit too much,personally i would rather spend $2500 on NEW Trick Flow Aluminum heads than almost $2000 reworking stock iron 40 year old stuff, JMHO.
[addsig]