ok, SO whats the heat riser shaft? What I have done so far is change teh oil, set teh timeing, and put the vac advance on teh dist on the correct vac port. The guy had it hooked up to constant vac. I set the timeing, to what you ask? I have no idea, I messed with it till it sounded right and checked the plugs. The motor HAD injection and the dude put a Eddelbrock 4bbl. Wold that effect teh stock timeing setting???? When I put it at TDC like its supposed to be it back fires, I advanced it till teh backfire went away but then it had absolutely no power so I kept messing with it. The exhaust delima or leak I should say I have no ide, i cant find it!!!!! I do need to adjust the valves and plan on cutting the top off a old set of valve covers to do a running adjustment. I cant remember how to do it not running. I figure the old valve covers will help keep some oil in the motor. I'll let ya know. The carb needed to be leaned out on idle. Still stinks but not as bad.