I have a 1998 rinker 182 with a 3.0 mercruiser and I usually take 3-5 people out and it struggles to get on plane. This said i took the numbers off the prop which say its a quicksilver 1918p21. It runs a max of 3600-3700 rpms @ 28 mph. I think this boat will run quite a bit faster and get up out of the water a-lot faster. Im looking for some answers as to what prop i should run. I am not really happy with the performance of the boat please help!! thxs Shawn