New Boater<br />I have a 32 foot 1995 Silverton 312 Sedan with twin Mercruiser 5.0LXs. Each engine is rated at 205 Hp. Rochester Carbs. Boat weighs approx 13,000 lbs. The boat was put in the water at the beginning of July. It does have a little growth on the outdrives so I would imagine it is also under the boat. It is kept just off the mid-Chesapeake bay near Baltimore... not salt water but nor fresh either.<br /><br />The problem is I can get it to run any faster than 10 knots. The RPMs will NOT go above 3000 on either engine. I just bought the boat and do not know how long it sat without running or being maintained. The port engine takes a little bit to starts, idles a little rough for 1 or 2 minutes then runs fine. It does NOT cough or backfire at any speed. Neither engine gives any problems at any speed. Oh, I do have the occasional problem of the port engine stalling when dropped into reverse but that may just be me getting used to it (Never owned a boat before). I have Silverton send me a spec. sheet and everything looks correct including the props. It said the boat should go 41 MPH using the 5.0Ls and I have the 5.0LXs which have 15 more HP each. The boat is going at approx. 25% of what is should.<br /><br />Does anyone knows where I should start? I am suspecting a Fuel issue.