That’s a really small cam for a 12.5:1 505.

Shift point is dependent on a lot of variables....... but I’d say with an appropriate gear and converter....... somewhere in the low 6000’s.
Just experiment and see what goes quickest.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads