Tech & Jerry Thanks for the help
That C4AZ-D looks close to the same numbers as the over the counter C4AE-B (324* dur.), Ford recommended for their Medium and High Riser. That’s the cam I took out of my engine when dropping CR from 12-1, that cam did love up to 6K+. The Comp cam 280s is pretty close to those numbers trying to compare old numbers with new @.05 isn’t easy. Now the C3AZ-AA (306* dur. cam that came in most 427s) looks kinda close to the 270s, I ran that Ford cam back in the early 70s. Those two are hanging off the ceiling now.
Was thinking about Ed heads but that might be in the future, they are about 5 or 6 CCs smaller than my C8AE-J’s so that would give me another .5 more compression. Besides my eye candy trips set up is matched to the iron heads.
Looks like I’ll be taking a second look at the 270s.