The 1978 Volunteer 500 was a Winston Cup (now Nextel Cup) event held at Bristol Motor Speedway on August 26, 1978. Cale Yarborough led 327 of the 500 laps in route to a dominating sixteen-second victory on Benny Parsons. Yarborough, also the points leader, expanded his margin to 208 markers on Dave Marcis (6th). Stats