Idaho39,
I believe there is a tech tip on the site here that describes how to adjust the valves. The procedure is different for solid lifters as apposed to hydraulics. I have reverted to adjusting my solid lifters while it is running and the results to me are superior to the static method.
Do you use a feeler gauge while the engine is running with those solid lifters?
How many hands do you have? I tried it once, but the valve stems destroyed my feeler gauges. (Maybe my feeler gauges were from the dime store.)
I do adjust valves on my '53 235 hydraulic lifter engine while it is running and it works like a champ, but of course, you don't need a feeler gauge for that.