Wrong kind of boat if you're talking about speed. The hull design won't allow high top end speed. Designed for a totally different purpose. Mid-40's, give or take.
I don't know what year your hull is but the earliest model had an HP max limit of 230hp and back then, that hull was rigged with two strokes. With a 4s it will probably be slower than early years with same horsepower. Regardless, if speed is your aim, you are looking at the wrong kinds of boat.
We have a 2002 209 with a Yamaha 200 hpdi. With a light load we can hit 49 mph in relatively calm bay water. We have switched props a few times and raised the engine, I believe we decided on a 15.25" x 19" SWII yamaha prop.
A late model 209 with the 200 four stroke Yamaha should do 45 with a light load and flat water. I've had that and it's a great hull and can attest to the numbers. I agree with the other comments that if WOT performance is what you want this is not the boat.