Roller Rocker geometry questions

Skrews - Look at the two pink lines in picture one. There is no way to raise the shaft and get the result needed. The only way is to either run the valve shorter (and the change is not "1/2 inch") or mill off the rocker shaft stands and run support blocks that can properly locate the rocker centerline. The problem with that head is the valve is either the wrong part (.100" longer?) or someone sunk the valve. If the placement of the rocker tip is checked at mid lift it's almost off the valve. There's some basic wrong stuff there.