Final Engine Compression Ratio?

put the piston half inch down Hint use 6mm
figure the vol of cylinder your bore in mm x 6mm (adjust for out of deck) (or other down distence)
grease the piston crevese aand put a small hole plexiglass at the top of the bore w grease
fill with seringe
subtract from vol of cyl cc adjusted for out of bore
do the calc with your gasket and head cc's as usual
(or you can work with inch measurements and convert)

about the comp- should be a good cam if right
however IDK and i can't tell ,
if the 292 is comp degrees .006 Or Mopar degrees which are closer to .008 which would make this cam a 300 degree class lobe for dynamic compression calcs
anybody ever degree wheeled this one?
Crane used to clean up the factory lobes however others use whatever lobe they have handy, some "our version of" are not even close