99 problems and a Ford ain't one.

VonCramp said
I remember being told zero lash but I went with .010 because I know with heat metal expands. I did a compression check a while back ago on driver's bank. I want to say 170 psi was average. Haven't done passenger bank yet. I will say that #1 exhaust and #4, and #6 exhaust will at sometimes stay cold and other times function normally at operating temperature. That is why I am pretty sure there are valve issues.
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Hold up, you were told "no lash on a solid roller cam"? Yikes, that's BS. Please add .020 lash hot on both intake and exhaust!!!! That could be your 'running like **** warm' as the rollers at .010 or zero are holding the exhaust valves open! Comp Magnum solid roller cams spec to .020/.020 lash, I assume that would be a good start and a roller is pretty tolerant of a wide lash.