Your right guys I'll think I'll stay with the 0.030 overbore which is where I'm at and look for other sources of power. Next question is-- Looking for advice on the cam. This again is a marine application in a 4500lb 23 foot Formula, single engine. I have been looking at cams in the .500 range with 270 duration. Am I in the right ballpark and what is the pratical limit for an engine for this use?
