My engine is .051 "quench" - .024 in the hole and .027 HG 11.89 to 1 static and 8.2ish to 8.8ish dynamic depending on altitude with a cam with an intake closing at 73 ABDC and cranks at 170ish summertime DA and around 180ish cooler weather with a jump box on the battery.(probably why my car is such a dud) Would a thinner HG help me out some? I think so.How I got my piston in the hole value I raised the piston out of and got true TDC with and indicator, I then put the indicator with a deck bridge on the side of the piston close to the wall rocked the piston to the high side then to the low side in the bore and divided by 2 and came up with .024. piston is a diamond with .0065 piston to bore / -19.3cc -- RACED on local 93
