Originally Posted by psx_pat
Ok,thanks. What compression ratio I should make? And for my setup with the head milled 0.003+stockb20b block,what compression ratio I have now aprrox.?
Use
www.c-speedracing.com for the compression calculator. It isn't entirely accurate, but it will give you a good estimate.
Your desired compression ratio depends on what kind of gas you have available and how good the tuning is.