Long before the CookOut Summer Shootout became a summer tradition at Charlotte Motor Speedway, Robby Faggart was already building a life around the track. The Concord native worked under legendary promoter Humpy Wheeler in the 1980s, won a NASCAR Sportsman championship at the speedway in 1992, and later reinvented himself in Legend Cars alongside a new generation of racers. More than three decades after those early days, the 65-year-old found hi…