The COPO Camaros, Chevelles, and Novas of the 1960s and early 1970s were the ultimate high-performance GM muscle cars.
While few knew about this back channel program at the time, it is now recognized as the origin of GM's top muscle cars.
Dedicated Chevy racers and car owners were determined to compete head-to-head with Mopar and Ford at the racetrack and on the street.
But in order to do so, they needed to circumvent the corporate ban on racing and resolve the restriction of 400-ci engines i.