HIJACK ALERT: 8 point, are you saying that my compression tests should read 160 -170 PSI? When I had my '62s installed my readings were 175-185 PSI. I now have heads with 60cc chambers and the same pistons and cam. I'm guessing my readings will be significantly higher now...? I'll have to test this. Can actuall CR be calculated using this info vs. chamber volume?
I'm a hobbyist. Not a professional. Don't be hatin'!