long stem valves and raising rocker shaft

I think that may be a problem Gary because the valves and rocker stands are not perpendicular. If you run valves that tall and shim the rocker stands your going to be moving the rocker arms and valves too far apart. Probably so far the rocker arm pad will no longer even reach the valve. Why not get the spring pockets cut and use spring retainers that give extra installed height? I had my heads cut for an install height of 1.8" and could have used retainers that gave an extra .050" inst. height but I didn't need it for my springs but I'd think that'd work for you.