The 2520 xl is probably going to come with a single yami 4 stroke 250. The xld should come with twin 150's or the new 8cyl 300.
I can speak for the xl with a F250. With no modifications to props or tabs, full tank of gas, 350 lbs of passegers, 200 lbs of stuff, flat water, no headwind:
Should do 6000 rpm WOT 40- 41 mph
5000 rpm 30-32 mph
4000 rpm 20-24 mph
3000 rpm 15-18 mph.
Other guys with the deep v can give you their numbers.
Good Luck.