The 1978 Gwyn Staley 400 was a Winston Cup (now Nextel Cup) event held at North Wilkesboro Speedway on April 16, 1978. Darrell Waltrip led 146 of the 400 laps in route to a dominating victory on Richard Petty and the rest of the field. Points leader Benny Parsons finished 3rd and held a 102-point lead on Dave Marcis (5th). Stats