It was obvious the truck wasn't running right, and rough so I popped the valve cover to check the rocker arms. I could see some damage to the lifters so I took the manifold off. What I found wasn't good. Two damaged lifters and dinged up pushrods. Fairly certain it was caused by valve float. Luckily I have a screen and magnets in the valley just in case. I believe they saved the engine.
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