I have a 07 Prowler 650 H1 base model that I stripped out the reverse gear and now has a 09 engine with 30 hrs. on it. I was thinking that it would run close to 55 mph down the hwy but went on a ride last night and a friend with a spedo said I was running 35mph and I had it to the floor in high. Does anyone know how fast it should run? If I have a problem how can I fix it? Any advice would be greatly appreciated.