Just bought a 90 Sweet 16. It was a two owner boat and very well maintained. Replaced the original fuel pump with an electronic unit as the original was failing. Being my first Donzi I was wondering what this boat should do top end. I have only been able to hit 47.5 gps. Granted that was in a bit of chop 1 1/2 ft waves but I would think this boat would have a little more top end. It only has the 4.3 but still, trimmed out to the max I'm surprised it isn't a 50 - 55 mph boat. Any advice? Oh and BTW I'm running a 14 1/4 21p viper stainless prop. I've included some pics of the boat just for fun. (Picked it up for 5600 so I'm not complaining just wish it had a bit more top end.