I have a 1994 Ranger 482 and just upgraded motors. My previous motor was a Mercury 175 EFI with a 24 pitch 4 blade trophy plus. Top speed at 5800 RPM 55MPH. I upgraded motors with a 2016 175 Evinrude etec G1. The mechanic boat tested with a 24 pitch Raker 3 blade top speed 61 at 5100 RPM on a small lake. They were unable to fully run the boat. Mechanic says 5800 rpm is top for this motor. Today I ran a 4 blade Mercury 24 pitch Fury. Top speed 56 but only 4800 RPM. Boat severely pulled to the right if i let go of the steering wheel. Mechanic thinks i should drop down to a 4 blade 19 pitch. Props are definitely not something i know a lot about. Any advice is greatly appreciated