Thanks for all the feedback. I asked the question because I am considering purchasing a Marlin and wanted to account for what I might be in for. Currently have a 1992 24' explorer which I purchased new 17 years ago.
Anyone have any idea what GPH one would realistily expect with boat loaded at cruise speed. Boat has twin F250's. The Grady site says approx. 19.5 gph = 31mph. I don't think that would be the real world stats.