Greetings from the north. I have a 87' Mariner 3 cyl. w/L.S. & SSprop on a 16' Hewescraft River Runner. My wife will not ride with me in the boat, as is, she says flying should be done in air planes,but promises to if I put jet unit on it. But, the most important reason for the jet unit are the rivers in AK. <br />It is a good bay boat but I want to move into the shallower rivers. My problem is I have not been able find a jet unit to for it. Can anybody help with a source? THks.