Does dish on top of a piston affect quench? I might have to used dished pistons to get the compression ratio I want, and it seems like the crown would be further away from the head if I did so. That's bad, right? I'm thinking I'll need a -12 to -15 cc dish to get 9.3-9.6:1 comrpession. I might use the -15 and then deck slightly above 0 to get 9.4 or 9.5. I do plan to cc the combustion chambers so I could loose some comrpession there. I might take out 2 or 3 cc's.