A Camaro ZL1 leaves the factory with 650 horsepower on tap from its 6.2-liter supercharged V-8 engine, while the Ford GT comes up a tad shy with 647 hp from its 3.5-liter twin-turbo V-6 engine. With professional drivers behind the wheel, the Ford GT would likely still leave the Camaro ZL1 in its dust, but video from casual racers shows the two can be pretty evenly matched.
The Camaro ZL1's peak power is delivered at 6,400 rpm and the Ford GT's arrives slightly lower at 6,250 rpm. With that in mind, it might make sense that the GT wouldn't actually pull away in a mad dash when the straightaways come up at Mid-Ohio. However, the Camaro weighs about 600 pounds more than the GT, so the GT really should pull away.
In this video posted by Luke McGrew, however, Mr. McGrew keeps up with the GT for close to six minutes around Mid-Ohio. The Camaro ZL1 can never really overtake the GT, but the GT can't shake the Camaro, either. Motor Authority