I just put a 25 horse on this boat:

http://yaimkool.com/images/brockway16-04.JPG

Now I need a prop. I know nothing about props, never had to even
change one (but I do know how). Where do I start, a dealer, online,
walmart?? Sizing, pitch, number of blades? I know nothing about them.
I do know that the boat cost 400 to build and the engine was leftover
from an old boat so I don't want to spend a lot of money for this
utility boat. The prop should cost less than the boat
Thanks in advance.