May, who now has 1,550 points, broke current Tar Heels player Jon Holmes' mark. Holmes scored 1,536 points in his career while at Bloomington South from 1996-99.
May also set the school mark last week, breaking Duany Duany's record of 1,532 points.
South had lost two consecutive games – the team's only losses of the season – prior to the rout over Graceland. The Cougars are now 19-2 this season.
May broke Holmes' mark late in the first quarter on a 10-footer in the paint.
"It was sometime during my sophomore year that I was made aware that I could set that record if I stayed healthy and kept playing at a certain level," May told the Bloomington Times. "so that became a goal of mine, but I would never elevate a personal goal over any of our team goals, and I'm glad we played better tonight.
"I felt it was very important that we bounce back well (from Friday's 60-50 loss at Columbus East). Errek (Suhr), John Allman and I felt really bad about last night, as captains, and we talked with the guys and it was good. I think it showed."