OK good numbers. BTW, the OP has 72 cc head chambers, not 63 cc head chambers.
With the quench surface .010 ABOVE the deck, then I get 11.16. Yes kinda high for that cam for pure street use. (Tho' AJ would try to run it on liquified mothballs LOL!)
Any reason to stick with that cam? Is this just for the street and cruising?
I personally would hate to waste a classic set of pistons; I'd check the bores and put in a set of KB flat tops if I could. But as these are probably forged, the piston-to-bore clearance would likely be too large for a good fit with KB hypers.
Then there is the use of a larger cam, retarding it a bit, and putting in thicker head gaskets.
