Okay after a 3 month stay at the boat shop where they changed out all the exhaust system to fix the exhaust leaking into the cawl, the carb has been rebuilt, the fuel pump has been rebuilt twice, I changed out the hose to the motor, bulb primer, quick connector, all hoses inside the cawl, plugs, all compression checks out good. I have tried to hook a remote tank up too, and still the motor will not run as smooth as it once did. I also changed out the prop. When I hit WOT it surges in and out just enough to agrivate me. You can tell something is not right but I have no clue what is the problem neither does the mechanics, can anyone shed some light on my dreary situation?