I won’t argue one way or the other who wins this but I’m curious as to why you think Norton beats Tunney so early ? Tunney was never stopped, was quick on his feet and very durable.
Different level athlete for one. Different level heavyweight. Tunney had almost zero resume at heavyweight by the standards of Kenny's era. Also, Kenny's kryptonite was power punchers. Tunney wasn't that. Oh, and Tunney never fought a black man.