The convertor is a 9.5 PTC that was spec'd for car, cam, gear, etc. It has never had a good idle to be honest. Its been in there as long as I have had this motor combo together. At that time I did have the screws out 2 turns but have since went back to the 1.5 setting. I'm going to see where I can get some race gas and try that next along with electrical checks. Thanks, I appreciate the help.