Setting timing ? First time doing it.

I know his slant is bone stock but with MSD boxes you can't use dial back

I actually ended up buying an MSD light from my engine builder. I really like it.
I used to run in to that on the tool truck. Our old Actron lights would work with multispark. Too bad MSD doesn't have a simple switch to shut off the multispark so it doesn't confuse the timing light circuitry.