Sunday, June 11, 1978 – Benny Parsons, who won a Daytona 500 in 1972 and a premier series championship in ’73, finally won on a road course when he outlasted the competition to capture the NAPA 400 at Riverside International Raceway. The win came in Parsons’ 17th attempt at the 2.62-mile layout.
• Parsons, 36, drove his L.G. DeWitt-owned Monte Carlo to the front, passing Bobby Allison with 16 laps remaining in the 95-lap affair. It was his third win of the year, coming on the heels of victories at Richmond, Va. and Darlington, S.C.
• Parsons’ pit crew was the same group pitting the No. 11 Oldsmobile fielded by Junior Johnson and driven by Cale Yarborough. Parsons asked for the help in an effort to save money by not bringing additional crewmen on the trip.
• Yarborough, the No. 2 qualifier, led 47 laps, most of anyone. However, he was penalized 30 seconds by NASCAR for improper pitting – he used an illegal shortcut to get to pit road after suffering a flat tire.
• Runner-up Richard Petty saw his winless streak reach 28 races at Riverside. The six-time series champion had not won since the July Daytona race of the previous season.
• Hershel McGriff won a sportsman/modified combo race, the Warner W. Hodgdon 200, contested earlier that day at Riverside. McGriff then came back to finish 17th in the Cup event.