I think they had a Puma/ 250SS combo at the dealer meeting last summer, and i bet Judd can tell you about it ! If i were a 250 fan i would consider the engine. I ran a 95 Suzuki for about nine years on my 90 P2, and sold it to a friend who is still running the engine. They are tough, though most wont perform with the Mercs,,,,other than the old bass 150, it was a runner and had the right gearcase on it to handle big props which helped tremendously, D.