The 1976 Richmond 400 was a Winston Cup (now Nextel Cup) event held at Richmond International Raceway on March 7, 1976. Dave Marcis dominated the event, leading 151 of the 400 laps in route to a strong victory on Richard Petty, Marcis' first victory of the year. Petty grabbed the points lead back with his runner-up effort, holding a slim five-point edge on Benny Parsons (9th). Stats