Took the truck to a local brush pull. We just wanted to test a different tune as we never made it to the dyno last week. I think the truck caught the sled operator off guard. He had the sled set to stop the "street" diesel trucks at around 300 feet. He just figure that they would move the last set of cones out to 400 feet and that should be enough. Guy had to get out of the pedal a little at the beginning as the front tires started chattering.