I have a 16 foot pontoon boat with a johnson 40hp.<br />the prop is a 12 1/2 x 13. At WOT the tach reads 4400 rpms with the wind at my back. What prop would I need to achieve the recommended WOT rpms.<br />Im not 100% sure but I think it is supposed to turn around 5000. Load is usually 2 people...