BOSTON (AP) - David Ortiz hit two of Boston's eight homers and also doubled for his 2,000th career hit on Wednesday night to lead the Red Sox to a 20-4 romp over the Detroit Tigers. Will Middlebrooks hit a grand slam, Ortiz had an RBI double to reach the milestone and Daniel Nava added a two-run homer in an eight-run sixth inning. Ortiz homered again in the five-run seventh - the 427th of his career, moving past Billy Williams and into 47th on baseball's all-time home run list. AL East-leading Boston took two of three from the AL Central-leading Tigers and kept the best record in the American League. But after scores of 3-0 and 2-1 in the first two games of the series, the Red Sox burst out with a franchise record-tying eight homers and a season-high 20 runs. Jacoby Ellsbury, Stephen Drew, Mike Napoli and Ryan Lavarnway also homered for Boston.