Looks a lot like what we used in the 70’s in Super Stock.
Smaller in lift than the popular Cam Dynamics R-286 which was .750” at the valve with stock 906 heads. Used the then popular 069J B & M converter which flashed around 4500.

With the stock heads they started to lose power around 6600. Not sure how much better your heads are.

Last edited by Transman; 11/16/21 09:30 AM.