Javier Arenas ran back a punt 80 yards for one touchdown and set up a score with another long return to help No. 1 Alabama roll over Mississippi State 32-7 in college football on Saturday. The undefeated Crimson Tide didn't need a dominant offensive performance to turn back a team that had beaten them for the past two years. Kareem Jackson blocked a punt in the end zone for a safety and Leigh Tiffin kicked three field goals to help keep 10-0 Alabama on track for a perfect regular season leading up to a showdown with No. 3 Florida in the SEC championship game. No. 3 Florida 56, No. 24 South Carolina 6: At Gainesville, Florida, Percy Harvin ran for a career-high 167 yards and two touchdowns as Florida thrashed South Carolina and former coach Steve Spurrier. The Gators won their sixth in a row, finished unbeaten in the Southeastern Conference Eastern Division and kept their national title hopes alive by beating the Gamecocks for the 16th time in the last 17 years. The 50-point drubbing was South Carolina's worst loss since falling 63-7 to Spurrier's Gators in 1995. No. 4 Texas 35, Kansas 7: At Lawrence, Kansas, Colt McCoy burned the Big 12's worst pass defense for 255 yards and two record-breaking touchdowns and Texas stayed in the thick of the national championship hunt. The win gave Texas 10 wins for the eighth year in a row. If Texas, No. 2 Texas Tech and No. 5 Oklahoma should tie for the South title, the tiebreaker to see who advances to the Big 12 championship game could come down to BCS rankings. No. 6 Southern California 45, Stanford 23: At Stanford, California, C.J. Gable returned a kickoff 93 yards for a touchdown and ran for another score as Southern California ensured there'd be no repeat of last year, when Stanford upset the 41-point home favorite. Mark Sanchez added two touchdown passes and Stafon Johnson ran for two scores for the Trojans. No. 7 Penn State 34, Indiana 7: At State College, Pennsylvania, Penn State overcame a sluggish start to move a step closer to the Rose Bowl. Derrick Williams ran for one score and caught a touchdown pass, Daryll Clark threw for 240 yards and two scores in an uneven outing, and a stifling defense held Indiana to six first downs. No. 8 Utah 63, San Diego State 14: At San Diego, Brian Johnson kept Utah on a BCS-busting course by throwing a career-high five touchdown passes against San Diego State and clinching at least a share of the Mountain West Conference title. The Utes will try to finish the regular season undefeated when they host No. 16 BYU in their big rivalry game on Saturday. No. 9 Boise State 45, Idaho 10: At Moscow, Idaho, Jeremy Avery rushed for a career-high 156 yards and two touchdowns to help unbeaten Boise State keep alive its hopes of returning to a BCS bowl. Boise State also clinched at least a share of its sixth WAC title in the past seven seasons. In other matches it was: No. 10 Ohio State 30, Illinois 20; No. 11 Oklahoma State 30, Colorado 17; No. 12 Missouri 52, Iowa State 20; No. 13 Georgia 17, Auburn 13; No. 16 BYU 38, Air Force 24; Maryland 17, No. 17 North Carolina 15; No. 19 LSU 40, Troy 31; Boston College 27, No. 20 Florida State 17; No. 23 Oregon State 34, California 21; Houston 70, No. 25 Tulsa 30.