My doomed 408 build

Good plan.

Assuming you’re running 1.5 ratio rockers........
I’d call Competition Products and order:
- Howard’s Cam 711313-08
- Howard’s lifters 91717
- Howard’s springs 98541, or the Kmotion k-800
- if the heads still have the stamped locks, I’d upgrade those to machined locks(Crane 99097-1 to fit the Ede retainers)

You’ll likely end up needing different pushrods.