CHAPEL HILL, N.C. (AP) -- Ed Davis had 20 points, 11 rebounds and four blocked shots, and No. 9 North Carolina overcame a big game from Malcolm Delaney to beat Virginia Tech 78-64 on Sunday night.
Larry Drew II added 14 points while Deon Thompson and Will Graves added 13 apiece for the Tar Heels (12-4, 1-0 Atlantic Coast Conference).
They opened the second half with an efficient burst that helped them bounce back from a surprising overtime loss at the College of Charleston, improve to 11-0 at home and avoid losing its ACC opener for the second straight year.
Delaney returned from an ankle injury to score 20 of his 26 points in the first half, and almost single-handedly willed the Hokies (12-2, 0-1) to their second victory in Chapel Hill since joining the league in 2004.
Dorenzo Hudson added 14 points on 7-of-22 shooting for Virginia Tech - which had its nine-game winning streak snapped, and lost its fifth straight against ranked opposition.
Graves hit three timely 3-pointers for the Tar Heels, who started slowly before putting themselves ahead to stay by opening the second half with a 15-6 run keyed by improved effort, efficiency and execution.
They scored on eight of 10 trips downcourt, many on dunks and uncontested layups, and went up 49-44 on Drew's steal and layup with about 14 minutes remaining. The lead grew to 60-52 with just under 8 minutes left on Graves' 3 - just the Tar Heels' second in two games.
Drew hit a 3 with 5 1/2 minutes to play to put North Carolina up 66-55 - the first double-figure advantage for either team - then sent many fans to the exits when his 3 with about 2 minutes left made it 74-59.
The Tar Heels - who finished 5-for-16 from long range, hitting five straight after an 0-for-11 start - also clamped down on Delaney when it counted. The ACC's second-leading scorer tormented them in the first half but had trouble getting clean looks down the stretch.
He was 1-for-5 in the second half with the lone field goal coming when the ball was tipped in during a scrum in the lane.
That, after his hot start had many thinking the Smith Center single-game scoring record of 40 points might be in jeopardy.
Behind Delaney - who missed the Seton Hall win eight days earlier with a sprained left ankle - the Hokies were a one-man show in a surprisingly effective first half.
Tech led for virtually the whole way, with Delaney having a hand in eight of his team's 14 field goals, scoring five and assisting on three. He was the only Tech player to score in the final 9 minutes before the break, scoring his team's final 13 points of the half.