I asume you have recently purchased the boat and it has a Max-Prop.
If so, e-mail or call Fred Hutchison at PYI, Inc and explain your problem. He can run the numbers and make a recommended pitch setting.
You will need to know:
boat description, weight LOA , etc
engine make, number, HP
prop diameter and number of blades
Tel: 800-523-7558
email:
info@pyiinc.com
web: pyiinc.com
If I remember correctly, the instruction manual is now on their web site.
Dave
s/v ARIEL