Had a couple seat backs.... Took the truck on its maiden voyage and it started blowing oil out the exhaust. I think its just the valve seals, but haven't gotten to swap them all out yet. It only does it when you first start it, a little smoke, then once you would think a good bit of oil has gotten to the valves. i think my motor may be a little more than 3 degrees tilt which makes the oil gather around the cyl. that is dumping oil. I did a compression test and its not the rings. Taillights wont work either, I think the ones I bought are defective. Hope to have it rolling soon enough tho. Been a real bummerhere that past few weeks.... Keep on keepin on