Only runs 40 Degrees advanced

Damn, Rusty got me on that one!
Op, I know I read somewhere that you changed the intermediate shaft and gear, did it have a hardened tip one before?
I would swap the cam, lifters, get rid of the adjustable push rods, use whatever you have lying around,
If your gonna yank it as junk you don't have anything to lose. I'd check the oil pump drive too.
Whatever you decide, good luck, that's a nice little ride to be down in pain.