How To Figure Compression Ratio

Thats a pretty cool machine. Wish I could find one to borrow! This car was built by a guy in California that moved to Vegas. I've never heard of Hines but apperantly he had and wanted it on there for nostalgia sake. :thumbsup:

I only care about the current compression ratio because it runs so well on 93 octane and never gets hot. I'd like to know where I'm at because I don't want to stray too far from here with the new set up.
I have a katech whistler an use it alot at the dyno. Some circle tracks will have rules that mandate a maximum compression ratio. If you have one near you maybe you can get the tech guy to check your motor for you.