The 1991 Miller Genuine Draft 400 was a Winston Cup (now Sprint Cup) event held at Michigan International Speedway on June 23, 1991. Davey Allison led 107 of the 200 laps in route to a dominating 11.72-second victory on Hut Stricklin. Points leader Dale Earnhardt finished 4th and held a 138-point championship lead on Ricky Rudd (8th). Stats