Chevy engineers have finalized the numbers for the upcoming ZL1 super Camaro at 580 horsepower and 556-lb.ft. of torque making it the most-powerful production Camaro ever. ?The Camaro ZL1 delivers supercar performance and technology in the sports-car segment,? said Al Oppenheiser, Camaro chief engineer. ?For sheer power, the ZL1 delivers more horsepower than a Ferrari…