Well, Gentlemen, it appears that I have a worn fuel pump cam / eccentric.
I thought I hit pay dirt when I found two cracks in the brass fuel line fitting on the inlet side of the pump. Maybe it was sucking air! Nope. That wasn't it.
No fuel being pumped up to the carburetor at all. New pump - same symptoms. Not a drop reaching the carburetor.
I just got in after working on it and having it towed the block and a half to my house. Haven't looked at the manual yet.
What's involved in replacing the fuel pump cam? Should I just put an electric pump back by the tank? If so what brand/model, etc? It's still a 6 volt system.