I purchased from Mercury a 357 325 hp 5.7 engine. It is on a 22 Foot Advantage (Cat) with a Bravo 1. I am running a 22P 4 blade Prop and while testing the WOT I realized that I was not reaching the WOT range of 4400-4800RPM. I am currently running at WOT of 4000, so I am going to get a 3 blade...