I'm going to make the assumption that the maximum rated horsepower on that boat is 425 so it should be designed to handle it. So, if price is no problem, why not? That said, price was a concern of mine and I'm happy with the performance of my 250 pushing around a 25' G. It'll hit 40 but rarely will I ever go that fast due to comfort considerations but plenty of folks on this forum feel differently.
Yes, congrats! We are in the south Cape and have an R25 with the 300 Yami. We mainly cruise less than 30, but it is good to know that when we need to move quickly out of the way of a 5 outboard 450s, we can.