I decided to go ahead and pull the motor and transmission. I just don't think it's worth trying to fix the head or dig any deeper when I don't know the true condition of the motor. That, and that fact that I know it burns and leaks oil (this is easily the greasiest engine I have ever worked on).
I'm thinking about going with the GM 260hp crate engine, and put it back mostly stock except a Performer EPS manifold, Performer 600cfm carb, and HEI distributor.
Got it just about ready to remove - only exhaust, driveshaft, and motor mounts holding it in.
