[Terry Stapley]

I just spoke with MSD tech Joe and he walked me through a repair process!
He said that the distributor machine will not simulate real "in the engine" performance because the gears are cut to pull the distributor shaft down and the dist machine will not do this. He said that it sounds like I have something binding and to remove the bottom collar and slide the shaft up to see what is going on and to check the nylon bushings and make sure everything is free to spin! I will update when I have some results!
Thanks again for your suggestions as it sounds like you were right on the money!!