I know a guy that bought a new Lazer HP 48. He had the dealer put a 22 Kohler on it. He also has a 48 walk behing with a 20 Kohler on it. Lots of hp! Talked to a guy yesterday at the grass dump. He has a 36 walk behind with a 20.5 hp Robin on it! What do you guys have or have seen in the way of big hp on equipment?