Only runs 40 Degrees advanced

I would want to replace the components that were involved with the lock up, and in the chain of events that would include the cam and chain set.
On another note somewhere a cloyes set was mentioned. One with different key slots?
Yes I have thought about just throwing another Cam in there. But if I do that then I will probably change the whole set up get me a 410 crank and roller cam. So I am going to the Nats here in a couple weeks I will probably shop around for a good stroker kit or a 6.4 I’m on the fence about that. In the meantime I would like to get this one running so I could sell it just in case I want to buy a whole different motor