[marshrunner757]

I currently run a 2 stroke 40 merc which has 60 carbs and ported on a 1650 Xpress. I run low 40's with a full fishing load. Thinking about buying a 4 stroke 40 Tohatsu. What kind of speed could I expect with this motor? What prop should I run? I'm sure I'd lose some speed, but the fuel economy and quietness would offset a little speed loss. I would hate to drop six grand and regret it so I'm looking for everyone's experience.

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