In stock form the Z06 put down 559 horsepower and 543 ft-lbs of torque and after the modifications and tuning the results were impressive at 661 horsepower and 626 ft-lbs of torque. Using a 14% drivetrain loss on the 7 speed manual transmission that puts this Z06 at 760HP.
Check out the dyno graphs and videos below.
Source: www.latemodelracecraft.com