Jeff Jeal and Bill Kirchhofer teamed up to put over 600 horsepower into this ZR-1.

Wanting to build tire speed, Bill Kirchhofer wound up his LT5 to 4,000 rpm and popped the clutch in second gear to smoke the rear tires for the burnout contest at Beech Bend Raceway Park. With a big aluminum Be-Kool radiator, he wasn’t the least bit worried about boiling antifreeze onto the pavement. Another secret is the 160º thermostat. After 60 seconds of tire smoking mania, Kirchhofer revved the LT5 to 6,500 rpm for the finale. The crowd went wild as rubber particles popped and smoked high in the air.