Shane Whitefield and Marcus Burk scored 14 apiece for the Camels (6-6) and Damontez Oliver had 10. Clemons now has 1,669 points to move past Mike Reidy (1960-64) for fifth on Campbell's all-time scoring list.
Campbell went 5 of 10 behind the arc and shot 64.5 percent overall (20 of 31) to lead 49-29 at the half. The Camels finished the game with 11 3s and shot 52 percent to 34 percent for Allen (21 of 61).
The Yellow Jackets had 20 turnovers that were turned into 27 points.
Duke vs. UNC: TV info and how to watch on ESPN
Looking to watch the No. 8 Tar Heels visit top-ranked Duke on ESPN on Wednesday? Here's how to do it.
No. 18 Louisville emphasizing late-game focus at Syracuse
Louisville coach Chris Mack turned to humor as a defense mechanism after seeing his team's defense nearly squander a seven-point lead with 17 seconds remaining in its last outing.
Clyburn scores 17 to carry UNLV past Wyoming 66-56
Kris Clyburn had 17 points as UNLV defeated Wyoming 66-56 on Tuesday night.