302 heads

lelo, that was my next question, if i port the heads i have based on the head porting sticky on here and have them milled slightly that should be a big help theyre supposed to be 60-62 cc's am i correct in this thinking. and does anyone other than kb make a higher compression piston for the 318?

I had my virgin 714's (302' twin sister 1990 d150) milled .010 then I polished the chambers using just sand paper. The chambers ranged from 59.8 to 61.6.