Getting The Right Compression Ratio...

You had the decks cleaned up... You should have had it square decked... That way the deck height is a known quantity. You need to see where they ended up in your block. Every one is different. I always square deck to get the piston at 0 deck. For that piston, running a closed chamber head, the correct deck would have been 9.617. Running the .040ish Felpro gasket, you'd get a decent quench. If you use the recommended deck of 9.599, you have .018" of piston sticking out of the bore. So if you use a closed chamber head, you have a piston to head clearance(quench distance) of .022"... WAY too tight. If you use teh open chamber RPMS (pn 60179) you have the .060 deep open chamber, and the 65cc chamber you end up with .080" quench, too far, plus the compression ratio goes down. If it's all together, measure where the pistons stop at TDC. If they do pop up, get the 60179 heads and have them milled so the chamber is more shallow and you end up with .040" quench distance... That might be a bit of milling, so you'll need the intake sides milled too.