Seems to me there was a fellow in the upper midwest a few years ago that had a 450 hp, LH, 8V92
TA stuffed into the tail of a 4106.
Talk about a "sports car"!!
(Wish I knew what happened to it. . . maybe somebody knows.)
I also know of a fellow who's got a 375 hp 8V71T in his 4106, and another local busnut who's got a 350 hp 6V92TA in his 4104.
This much power in these 35-footers is, for the most part, similar to a 500 hp 8V92TA or S-60 in a 45-foot Marathon, as Niles said.
Hey, are we all beginning to sound like Tim Allen here?? LOL. . .