I do admit I broke my promise that I would fix the truck in this video but holidays rolled in and my frustration just collapsed. I do every feasible thing to this engine that I could to prove what this engine is doing. Pulled the engine and ran it on my test stand, thought I had the issue fixed but little engine isn't ready to leave my shop just yet. I'm still open to information but I think next move is a used engine in place to establish a hard answer. Frustrating but maybe you'll enjoy, thanks if you do!!