The 1977 Cam 2 Motor Oil 400 was a Winston Cup Series (now Nextel Cup Series) event held at Michigan International Speedway on June 19, 1977. Cale Yarborough dominated the event, leading 109 of 200 laps in route to a 10 second victory over Richard Petty. Yarborough was also holding off Petty for the points lead, enjoying a 103-point margin. Stats