Sorry for the late reply - thanks for all the suggestions.
Seems like the compression is just right for a blower...... hmmmm. Then the intake prob is solved and the heads will be forced to flow more : )
So without changing the pistons/ rods the only way to bump the compression is to find a set of 402 heads with small chambers that effectively raises the compression? Any idea what ratio w/ the forementioned heads?
The headers have to stay.... its a BBC in a 64 Chevy II so due to clearance they exit via the fenderwells. The hooker version of the headers I need would be better, but I bought the ones I have thinking I would have a 540 BBC pushing 850 hp. I will have a serious motor one day......