Need some help figuring CR

Ya, im at that point where I'm kicking myself for A. Not zero decking B. Not upgrading pistons C. Not milling heads.
I still have the heads off, and ready for a light port...just might take them back and have them take off .030...assuming the CR Calc is more correct then Chrysler was.

Honestly, not sure it really felt that much meaner. Damn thing ran pretty good previously. The old 509 Purpleshaft was a pretty good cam apparently.