I just purchased a 2005 256ssi with a Volvo 5.7 liter and a duo prop drive. It has twin stainless steel props on it. and a through hall exhaust. I have a couple of questions as to what my reasonable expectations of speed should be versus what the previous owner said they were for him.
A. The previous owner told me that he gets "every bit of 50 mph." Although I was skeptical, when I maxed at 44mph @5000 RPM (gps speed) I was a little shocked given the engine and drive combination. The conditions when I got 44 were smooth water, 3 people (400 pounds) and (lets say) a full tak of fuel (70