The Sierra Leone forward, who will spend the remainder of the season on loan from the MLS club, scored the equaliser in the 84th minute of the 2-1 win over Everton on the weekend before Holt grabbed an injury-time winner.
The Canaries striker said that Kamara had some vital qualities for the team and hopes he can continue with the freshness he has brought to Carrow Road.
"[His goal] was a great header. I was trying to nick it to be honest and get my head on it," Holt told the club's official website.
"He was lively when he came on. He's a bit of an unknown quantity, which is good for us. He brings that element of surprise and I thought he harried well."