360 build info

Re-freshening my 72 360 w/ J heads. Installed 9.8 flat tops. How do I calc. actual compression? Quench Ht.? / cc head chambers? (first timer)
Any cam advice? Currently have .410-.440 re-ground crower baha from years ago.
Would love to stuff comp cams smallest thumper line cam @ .497-.483 w/287/304 duration in this motor. I realize proper valve springs would be in order.
I do have a new set of Rhoads lifters for this motor if I choose to use them.
Edelbrock LD340 Alum. intake (lg. dual plane)

Any advise on direction?