I just got an 84' Sunbird 19' Cuddy. It is powered by a Volvo/Penta AQ125B / 270D<br /><br />Anyone have a suggestion on the best prop to use? I am not sure if the prop that is on it is stock or not. I will be using the boat for cruising the lake and pulling Tubes and Some wakeboarding. I put a new speedo on it but low and behold the tach is not working so I will fix that tonight. According to the speedo I was running about 30mph WOT