Maximum Performance N/A 383 build. Input wanted from engine gurus.

Yeah I was really intrigued when I read in a old Mopar book from the 70's about a build pretty similar to what I am trying to accomplish, but it had no information on head flow data, valvetrain, or any of the voodoo. Back then they ran a .654 DC Mini Express mushroom cam.

I initially was going to run a RB STX-22 (320 duration .590/.590 lift) but I realized I mistakenly bought a Hemi cam core, and I would have been leaving power on the table if I spent $600+ on getting the same spec cam ground for a B/RB
They could have been running max wedge heads ???
I wouldn't mind having one of those old mushroom lifter camshafts.
I think I recall the thread, oops