I just bought a 1994 Johnson 90 horsepower motor. I own a 1966 Lonestar V-shaped aluminum that is 18 feet long. I will primarily fish in the bay where it is deep enough for my boat. I am guessing 3 feet min. depth. I will do most of my traveling through the deeper channels. Can someone recommend me a specific prop for my boat. The seller of the motor was telling me about the pitch also, but I am a rookie in this feild and did not really understand. I have seen the great advice you have given other posters, and I just want a sense of direction. Thanks.