Anyone have installed valve stem height spec?

Start with a level foundation. All this crap is why, when you do a head, you check the head surface to valve spring seat surface.
Exactly..... that is why I doubt the effort to set valve stem heights to the existing spring seats is gonna fix anything.....and may make things worse. There is NO way to know if the seats are all anywhere near to being at an even height to start with. And determining valve height by looking at lash is looking at things the wrong way; the stack-up of parts tolerances in the valvetrain makes lash a 100% unreliable way to set valve stems heights.

FYI...I did realize I had rocker shafts 180deg out and it does seem to have changed original measurements...just trying to understand why, but still have loose rockers that I'll have to use pushrod checker to get proper length.
Holding out cause I know $600 would put Comp pro mag rollers on and solve the issue.
Understood on the cost factor.... Changing the rockers around and having preloads change is no surprise; they are just stamped pieces of metal and only have so much accuracy in their dimensions.
OP, have you placed a good straight edge across all the valves and been able to observe that any valve is long or short? We don't know what you are fighting, and the valve stem heights over the seats may or may not be a useful measurement.

...but...#2 Ex is waaay loose up until #7 cyl is TDC, then its tight.
Is it possible that when you think you are at #7 TDC you are actually at #4 TDC? Remember, #7 TDC on the chart you are using means that the #4 valves are at overlap (both #4 valves slightly open).