I have 115hp Johnson OB on a 35' pontoon hull when I test drove this boat I was told they never went over 3000 rpm and said the boat wieght to much to go over that. Regardless of the wt arn't rpm's rpm's? Am I wrong to think that the same motor on a smaller boat would probably top out around 5000 rpms and there for would be the same on a houseboat. only the speed would change right? If so what would be top rpms on this motor? Not looking to break speed records here just a new boat and I am just wondering. I know you can play with props to get better speed, milage, ect.