I was givin a '96 gamefisher 9.9. Spent a little money on it to get up and runnign good, but with the prop that is on there I am unable to get to a high running RPM. Not sure what the RPM is with out a tach, but can tell form the sound. Since this engine is a patch work from several companies, would anyone know what prop would fit and help me out. Would like to get a new engine, but this one works and was free. Thanks