A little more progress today...
I finally got to test out my new prop today.
The 11 pitch ran 22-23 mph... RPMs sounded too high.
The 15 pitch ran 24-25 mph... RPMs sounded too low.
The 13 pitch ran 27-28 mph, and RPMs sound PERFECT.
This is a factory OMC prop that I found as new old stock. I was mainly trying to get the RPMs right, the extra speed is a bonus. I haven't even tried tweaking the engine trim for max speed yet.
Amazing what the right prop can do for a boat. Slowly but surely, this is turning into a sweet ride.
-Tony