I have 300 laps on my mostly stock Corvette with 25k motor and stock gears.  The front guide is the deep wood guide.  There is some lead in the chassis now.  In front of the front tires were two posts on the chassis that did not serve any purpose other than to groove my low profile tires and stop any coasting!  They have been clipped.  My best lap today was 4.195 driving pretty conservatively, only pulling the trigger 100% on the front straight most of the way out of the curve.   Very little brake and nice slow sensitivity.  I decided not to change the drive train until we figure out what works better than stock.  Drive for me April 10th while I am at the Leander baseball game.  All the best, for I hope, my last semi-“proxy” race.