Ran twice from second gear roll, with me pulling 1-2 cars in third and fourth. Was even until mid third gear. Z06 has long tubes, air intake, special clutch?, dyno tune. Dynoed at 405 at the wheels. My car (03 Cobra) has 2.8 pulley w/chip, cold air, exhaust w/cats, throttle body. Mine made 452 w/469 torque. All in all a good couple of races.