I am considering purchasing a 1999 Four Winns 245 Sundowner with a Volvo Penta 5.7L EFI engine. Looks like it has about 220 hours on it. I would like to get people's thoughts on this size engine with a 24' boat. Just curious if it will have enough power or not. The ad says that it cruises at 45 mph with a top speed of 50. Can someone also tell me the horsepower rating of this engine? I've seen around 270, but I'm not sure if that is right or not. Thanks for your input!