You are the second guy that has said that so I guess that I'll spend my time and money on other necessary items. I have a baffled cast aluminum oil pan coming from Dave at Arizona Z and I have done some underhood temp reduction work. I've also cleaned the carbs and I'm going to adjust the valves when I get back home. Lastly, I have watched Z Therapy's SU video and I am going to tune/balance the carbs when I get done with all of that. My next race is coming the end of this month and I'm anxious to see how much my efforts have helped. Rick:D