Lost some RPM with the change from the 29X11.0X15 to the 31X10.5WX15 slicks. Trapping with the 4.56's at about 6400 RPM, looking for a trap RPM around 6800 - 7000 RPM, the 88's should do it . Picked up a Pro-gear from Summit. Car weighs in at 3750 with me in it. Also was running fat on the AFB's tune, tightened her up a bit, lean at part throttle but looking good at WOT. Racing this weekend at Moroso, grudge match with a mid tens 69 Ford Mustang and possibly a mid tens 67 Nova, should be fun, we all work at the same power plant. They're having a big get together 4/22 - 4/23 so probably will get one to two time runs in before brackets begin.