I'm looking at buying a 1997 astro 162 fish 16' w/ a 1998 50 hp honda four stroke and the guy selling bought it brand new in '98 and says the lake he always fished is a no wake only lake,therefore he's never had it to full throttle. The boat is rated for 90 hp and the motor has the factory prop on it,so I was wondering if anyone out there knows about what the top speed would be for this boat. Any help would be very much appreciated.