How fast will a 150 montauk with a 4 Sroke Mercury 60 Horsepower engine go?

I just bought a 150 Montauk Boston Whaler with a 4 Stoke Mercury 60 Horsepower engine, and would like to know how fast it will go, (MPH). ThanksHow fast will a 150 montauk with a 4 Sroke Mercury 60 Horsepower engine go?
It should do around 30 -35. I ran 17 montauks with 80's and got 40 out of themHow fast will a 150 montauk with a 4 Sroke Mercury 60 Horsepower engine go?
It should go approx. 35mph. take a handheld GPS on board and it will tell you right on the money.How fast will a 150 montauk with a 4 Sroke Mercury 60 Horsepower engine go?
I have not driven one of these boats, but I can tell you that It will depend on the prop's pitch.

The greater the pitch the faster it will go but there wont be as much initial acceleration.

The smaller the pitch the faster it will accelerate, but the top end speed will be slower.