Getting the most out of a low comp 440

rbdart said
Say ur comp now is 7.8... 516's should bump it up about half a point,so 8.3...mill heads I think .060 should raise it a full point to 9.3 roughly..RUSTY u wanna chime in here am I close on these figures?

I think the low compression 440 build Jim did started at 7.45 with open chamber and ended up with 7.85 with the 516s, so your estimate is about right.