What year 360? Sometime in the '80s they changed the stock deck from 9.600 to 9.577. Let me know and I'll do a real but rough calculation.

Shoot, I figured it out for the various setups

Newer 9.577 block, 0.040 gasket, 73cc head 9.59:1

Newer block, 0.028 gasket 0.032" squish distance 9.85:1

Old block, everything else the same 9.13:1

Old block, 0.028 head gasket 9.37:1

R.