94 904FS with a 93 200XP Vindicator turning a 25p Renegade Bass, NO JACK PLATE smooth as glass (would walk really bad at 55mph with a 4" plate). I get a good hole shot and run 66 - 70 GPS depending on the wind and current. Thats with all the fishing gear, one passenger about 1/2 of fuel (Never had it full at $4 a gallon) maybe this spring ill see if its slower with a full tank :)
With 4 adults and my 4 your old son. It another story :) Hole shot sucks butt and i wont run it hard with my kid in the boat so not sure on the speed. With just 4 adults im thinking 58 at most if i remember right.