Re-curve a HiRev7500 distributor?

Maybe borrow the governor from Ricks?
One nice thing is the points type spring perches allow more adjustment than the round ones.

I should say those Dynomation models were around my lower compression 340 with Hughes split duration cam but its roughly a 230 at .050. That's why I thought it was a useful reference for your 230 cam lower compression 360.

The Mopar Performance race (no vacuum advance) light primary springs I measured were made from .018" and .015" wire.
Their vacuum advance distributor's primary spring was made from .028" diameter wire, and some production ones were similar.

The challenge with many production distributors, and even the MP unit to some extent was the the number of degrees before the second spring engaged. The anti-smog packages from 67 (calif) through about '75 used a retarded initial timing and then a super fast advance to try to get the timing needed for economy and power a few hundred rpms above idle. That's why its often helpful to weld up the inside of the slots rather than stop the advance early (as the FBO plate does). As you play with it you'll see what I mean.

Have you seen these?