One change at a time, unless its a completed rebuild. Well recently I put on new Coil, 4.0 throttle body and new Injectors. Well it came back to bite me, at first I thought it was the fuel in the jeep since it was real old. Then figured it was the new used injectors, so changed them back out. But the way it acted went back to thinking it was the fuel.
It took almost smoking the new coil to find that was the problem all along, it smelled like my clutch was going out. But with how bad it was smelling it should have been really sliping. Got home and popped the hood, boy was that coil hot.
Well I'm back to a new stock type coil, Throttle Body stayed in and dropped those injectors back in. Running great. Still need to match throttle body to the intake manifold. But just for safety I'm waiting on the parts for my HD to get here and get it back running. I want to pull the manifold to open it up. Also have a broken bolt in the head for the exhaust will do that at the same time.