very fast pontoon

I have a 2011 Bennington 22 R Tri-toon with ESP package. I put on a 250 Evinrude motor that actually bench tests at 276 HP. I can reach 55 MPH with this boat on a calm lake and 2 people. My acceleration is unbelievable and I can pull at least 8 people in rafts behind the boat. The most fun is...