When Chevrolet dropped the ZR1 in ’96, it was replaced by the Grand Sport, with the LT4’s horsepower pumped up to 330. The way to get even more power than the previous ZR1’s LT5 DOHC 350 was to send your Corvette to Callaway for the Supernatural upgrade.
   
This was Randy Flock’s idea. He and his wife, Judy, first saw the Grand Sport at the Black Hills Corvette Classic in the summer of ‘95, when some of the engineers, Jim Minneker included, were