360 .... Looking for 9.5 - 9.8 Compression ratio

I have 360(Std bore) with KB hype .flat top pistons, and i looking to make 9.5-9.8 compression ratio with my J Heads # 3418915(millodon 2.02-1.60).

My question is:

How much chamber CC including my gasket do i need?.... to make 9.5-9.8 compression ratio????

Kind of a loaded question, do you want 9.5.1 or 9.8.1?? I believe you'll be right around these #s with the basically stock 915 J CC head (around 76cc) & a .039" gasket with the KB107s.