Compression ratio

• 60179's are the 'open chamber' version of the Edlebrock heads with 65 cc chambers.
• The head gaskets sound like Felpro 1008's
• The most likely pistons would be about .018" above deck, Or maybe even .012 below deck for one certain type. if the deck has not been cut.

If .012 below deck, SCR is right around 9.5.
If true zero deck, SCR is right around 9.7.
If .018 above deck like stock pistons, then SCR is right around 10.1

OP, the original factory CR is, and was, not real for production engines. You only get there with the original thin head gaskets and the NHRA minimum spec chambers sizes. Typical production CR's seem to run 0.5 to 0.75 points below advertised.

Don't worry about it..... your power is going to come from the improved head flow that you now have. You have good SCR as is, unless you have some massive cam in there.

Edit to add: I see the cam now.... an older type but this engine is going to be a very good street engine.... plenty of low RPM torque and ought to wind out very well. You ought to enjoy it... put in more money in your tire budget LOL.

Learn about ignition timing and be cautious in tuning. You won't need a lot of extra ignition advance in this engine.