Shane Larkin scored 13 of his 22 points in the final 7 1-2 minutes to help third-ranked Miami stave off Florida State 74-68 on Wednesday night for its 12th straight victory.
Reggie Johnson added 15 points for Miami (20-3, 11-0 ACC), which became the first team to start the league season 11-0 in a dozen years.
North Carolina was the last team to start its ACC schedule at 11-0 a dozen years ago. The Tar Heels, however, faded down the stretch of the 2000-01 season and finished with a 13-3 league mark while archrival Duke led by Shane Battier went on to win the national championship.
Two years earlier, the Blue Devils were the lone team in ACC history to go 16-0 in league play, but lost to UConn in the national championship game.
The ACC has gone to 18 conference games now because of expansion.
Durand Scott had 13 points and Julian Gamble 10 for the Hurricanes, who will try to keep their ACC slate perfect Sunday when they visit Clemson.
A 3-point play by Scott gave Miami a 51-39 lead with 13:05 left, but Florida State countered with a 12-0 run keyed by a pair of Terry Whisnant 3's to tie the score on Okaro White's basket. They never could get the lead.
The Hurricanes built their lead back to 68-56, largely behind Larkin.
White led the Seminoles (13-11, 5-6) with 15 points before fouling out with 2:04 left. Freshman Devon Bookert added 12 points.
The 6-10, 290-pound Johnson, spurred a 25-5 run midway through the first half to help the Hurricanes wipe out an early 13-2 deficit on their way to a 38-30 halftime advantage.
Miami, which had never been ranked higher than eighth nationally before this season, hasn't lost since Christmas Day.
The 'Canes cracked the Top 25 just three weeks ago and rocketed toward the top on the strength of several impressive victories. Miami became the first ACC team to beat both North Carolina and Duke by at least 25 points in the same season with an 87-61 win over the Tar Heels last week.