Florida State progressed to a 24-10 record after sneaking past the upstart Georgia Tech Yellow Jackets Friday.
Toney Douglas led the Seminoles with 25 points while Solomon Alabi chipped in 14 points and six rebounds.
Georgia Tech's Lewis Clinch helped Georgia Tech's cause with 25 points and two rebounds.
With 1:34 left in the game, the Yellow Jackets put the Seminole ahead 61-60 after Zackery Peacock hit two free throws.
Douglas then missed a free throw with Alabi grabbing the rebound and then missing a layup.
Clinch then missed a three-pointer on the other end but then a rebound and turnover by Florida State's Derwin Kitchen left the ball with the Yellow Jackets.
Peacock then hit a clutch jump shot to give Georgia Tech the lead 62-61 with 28 seconds to go.
With six seconds left in regulation Kitchen hit an astounding reverse layup to give the Seminoles a 63-62 advantage.
Kitchen then went the line after being fouled by Iman Shumpert and hit a free throw.
Shumpert then got the inbounds pass and ran upcourt, but took too much time to take a shot and then missed a jump shot while the clock was expiring.
Florida State advances to play the North Carolina Tar Heels in the ACC semifinals.