Hello, I have a 2012 20hp 4 stroke motor. What size or weight boat would this motor be able to push? I have a 14' boat weight a few hundred pounds it pushes it fine a 1/3 power. I'm looking to get a different boat I was looking at around 16 top 17 foot but there is a big different in weight between boats. example a 16 caroline skiff to a 17" key west. Thanks