ok so I bought this boat a few years ago and it didnt run. After a full tune up, pertronix electronic ignition, carb rebuild, alternator, and a new fuel pump I finally have it running top notch. Problem is it didn't come with a prop on it and I think our local marina had one he was itching to sell... With my wife and I in the boat it will go decently fast, but the rpms never really go over 3250. With 4 to 6 people in it and coolers and whatnot, it wont get out of its own way and about 3000rpm is the best I can do. it has a 14.5x19 prop on it. Will going to a 14.5x16 prop make my issue any better? I know the motor needs to be somewhere around 4400 rpm at wot, and by not reaching that it is seriously low on power. just seeing if anyone has any prop sizing info they can help me with. Its a 17' open bow with the merc 140 alpha one lower end. Weighs somewhere between 1500 and 2000 lbs, fiberglass, deep v. im not looking to break any land speed records here but I know that my friends 90hp fish and ski with 6 people on it smokes my 140hp with 2 people on it.... I am a mechanic and ive been through everything including timing and advance and carb setup. I am completely convinced that it has to be a prop issue at this point, there is nothing left to do to the engine. any help would be appreciated. Thanks!