The Year One cam is just a "close cam", similar to Comp cams. They are somewhat close to stock, different ramps, lift etc. but modernized. The same problem exists with the 383/335 HP cam. You wont believe how many people sell the "reproduction" cam. The numbers are all over the place.
It's really hard to find ,actual cams with stock specs.... I have had the best luck with wider lobe center (112-114...) Crowers beast series,and the Crane wide lobe center split patterns,from the early '80,s...
