The 235 seems to be running like it should now. It has run till warmed up, I've gotten to the point where I can adjust the noisy rockers with the engine running, they are all pretty quiet and the engine idles nicely. I wish I knew more about the history about what has been done to this motor, but it seems that it has been reworked pretty heavily a time or two. The rockers were pretty worn on their faces and the rocker shaft looks worn, so I would guess this engine has gone a few miles. If I were closer to the native market I would change a few more parts, but instead I'll just drive it until I get the original 216 ready to put back in.
Thanks for the patience in dealing with this hydraulic greenhorn, guys.
Karl