Raced at the local 1/8 mile tonight. Truck is a 01 5.3 rcsb,it has 3.73's,upd,hypertech with 87 octane tuning,magnaflow muffler with stock tailpipe,and 160 thermostat. Ran best time of 9.91 at 72 mph without spare tire and tailgate but had about 100 pounds of stereo equipment behind the seat. This track is known to be about 1/10 off other tracks around here so may have been a little faster at one of them.