Put a dolefin on the outdrive helps with getting on plane and the bow bouncing when running . I have a 22' Islander with a 3.7 4cyd. I don't know what prop I have , buy I come up on plane at 16 to 17 mph and run at 25 mph at 3600rpm I don't run at wot and don't know what the top speed is. I am more interested in the trolling speed.