2.02 heads on a 318
im running 2.02 J-heads milled .050 (9.7:1 cr - 56cc chambers) on my .030 318 with a .480 lift cam revved up to about 6,000rpm and they haven't met the cylinder walls.
I've heard they can cost a little on the low end, but with my 3.91s and 3,800flash rpm dynamic converter, i don't think i've come to see a soggy bottom end :)