Sage Karam is the 2010 U.S. F2000 national champion and 2013 Indy Lights champion. But Saturday he climbed into a Corvette Daytona Prototype for Chip Ganassi Racing and became the fastest guy on the track. He was an open wheel champion who was proving his skill behind the wheel of a sports car on Continental Tires. At one point in his stint he turned in the fastest lap in the race. When he came into The Freak Nation afterwards, Karam was still buzzing from the experience. Listen…