Im thinking jpeiserich is correct. 40-45 range, but the margy is very weight sensitive. You start adding power poles, 24v TM, a friend, and a livewell full of water and you may not even hit 40 with only a 90HP on it. I will say the front deck is very open with plenty of room on the margay. Its just as nice to fish from up front as some of the little bit bigger basscat models. Im currently still working on dialing mine in for top speed under a full load condition, but will get there eventually.