should valves rotate ?

I get where you are coming from jos51700.
That was my understanding of how things worked in an engine..........but this is my first trip down solid roller lane and I thinks things are different here.
I have no expectation of getting 100,000 miles out of my set up.
Not without several freshen ups anyway.
As far as trying to sell me more and more expensive race parts , I have a Bullet cam , Crane Ultra Pro roller lifters , Manton pushrods that I speced for the engine as far as length and oil restriction. ( push rod oiling ) , T&D rocker arms, Manley titanium retainers , Comp 10 degree keepers , Victory stainless valves in aluminum W-9 heads. I think I beat them to that particular punch.
They were set up by a local shop that has a reputation for quality , so I am leaning towards something not being right with the one pattern that is different from the rest , and that it is a physical difference in hardware.
I'll let you know what I figure out , but I have way too much wrapped up in this deal to let this go unchecked.