Clark, a four-star prospect from Avon (Conn.) Old Farms, is the No. 3 ranked tight end in the nation by Scout.com.
"I'm ready," Clark said. "It was a great day here today. It just feels like the right time to do it, when you feel like the school is right for you. I got that feeling when I got on campus. I'm excited to be a Tar Heel."
Clark's lengthy scholarship offer list included Alabama, Arizona, Arizona State, Arkansas, Auburn, Florida, Florida State, Georgia, Miami, Michigan, Notre Dame, Ohio State, Tennessee, and Virginia Tech.
Heading into the weekend, Clark narrowed his focus to Arizona, Arizona State, Georgia, Maryland, Michigan, Ohio State, South Carolina, Texas Tech, and Virginia.
"It's just a good fit me. I know it's early in the process but sometimes it's better to get it done with so you have time to get to know the kids in your class, recruit a little bit and just get more comfortable with things," Clark said.
Sunday's visit was his first to Chapel Hill.
"It was really is an awesome place," Clark said. "I know the success they've have at tight end, coach [Larry] Fedora and his staff at Southern Miss and the tight ends coach [Seth Littrell] who comes from Indiana. It wasn't just about football, though. I know they're doing something really good here. They have a good a '14 class a couple of '15 commits that are really strong that I've been talking with, so the future is bright with North Carolina. I'm really excited to be a part of it and help bring some ACC championships to North Carolina, and hopefully some national championships."
Clark says the UNC coaches didn't pressure him into the verbal commitment.
"They didn't really have to say much because I get along with the coaches so well," Clark said. "It wasn't that they had to sell. You just want to play for them."
What he did see was UNC's academic reputation -- similar to Old Farms School.
"A degree from UNC is great," Clark said. "Like Avon, it's a prestigious university. It's similar in ways."
Clark committed during a meeting in Fedora's office with Fedora and Littrell.
"[Fedora] went crazy," Clark said. "He screamed and he chest bumped me. I feel really good about it."
Heading into the visit, Clark didn't anticipate making a verbal commitment.
Clark says this commitment ends his recruitment. He won't be taking any additional recruiting visits.
"This is where I'm going to be, no doubt about it," Clark said. "I'm not going to change my mind. I'm done."
As a junior, Clark caught 39 passes for 417 yards and six touchdown.
Clark is UNC's fourth '15 verbal commitment and second in less than a week. Charlotte, N.C. quarterback Anthony Ratliff committed to the Tar Heels last week.