He moved on to the NASCAR circuit and became one of the sports earliest stars. He never won a points race in his 165 Winston Cup starts from 1966 to 1980, but he had nine Top 5 and 51 Top 10 finishes, with many of those starts in a car numbered 14. His only career win came in a 125 mile qualifying race at Daytona.
Shortly after his death, his son Sterling was in negotiations with MB2 Motorsports to join the team's second car for 2006. When the team was unable to retain the #10 (which was to be used by Evernham Motorsports for 2006), MB2 was looking for a number. A still-grieving Sterling found the #14 available and had MB2 request the #14, which was granted, and is being used to honor his father.