I'm running a lightened steel flywheel in my car. It's about 16 lbs. Cut down from the stock U20's 22.5 lbs. No problems at all on the street. FWIW Brian H '69 2000 Tampa, FL -----Original Message----- Does anyone have a suggestion for a good weight just for spirited street driving, (no track use)? Mike Hudson '67 - Stroker / 5-speed