I have a 2004 Sailfish and repowered from F225s 3.3 L to F250 4.2L. Lot more overall power from the 250 from out of the hole , mid range and top end- when I first launch in the spring top end is a around 47 MPH. When I first got the new ones Yamaha was back orderd on props so I uses my 15 1/4...