Glad to see you're on the right track. I had a 69 C10 that was prone to one freaking rocker nut backing off. I just kept readjusting it and rolling it for about 6 months at a time.

I'm guessing the valve might be sticking too. Probably not too expensive of a rebuild to pop those heads off and have a machine shop go through them thoroughly.

Keep us posted on what you find out once you dig in.


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