I just stopped by my local dealer to ask about valve shims. In the past, I usually paid something to exchange shims. If you turned one in, they cost about $3 to get a different size. This time, they said they would swap me one for one, no charge! Very nice deal indeed. If there is anyone in the Minneapolis/ St. Paul area that would like to see a valve adjust, PM me soon. Might be able to have a little tech session. I just ordered the valve cover gasket, and when I get it, I will be moving ahead.