I am looking for someone who knows the correct procedure for setting the valve lash on a Bando engine. We are running a new 600 racing engine that needs to have the valves set. We were finding that after the engine got hot we could not get any rpms over 3000. Could a valve that is not closing all the way cause the loss in compression. The power loss only occured after we ran a few laps. Everything appears to be normal on the outside of the engine, it's the valves I don't know alot about. Thanks for the help in advance. Dan