Fix the over heating problem on your 22r. If you fix this it will sputter and choke along forever but overheat it badly once and it could be ruined.
That's the problem. I think it may have overheated badly. I'm not sure. Anyways, How reliable is the Chevy 4.3 swap? I may go that route. Where is the best place to get the engine? Also, which transmission is best for it? I'm just throwing these questions out there. I will also search the board (and Google). Thanks.