prop pitch?

[plumber n ms]

bought a 1991 merc 150 w 14.25 /21 pitch prop motor runs wot4900 rpms have a 19 pitch prop on the way should this help me reach 5500 5600 rpms ? any tips or suggestions are appreciated on 17' trophy cntr console rated for 90 hp max gps shows 50 mph at 4900 rpms now

 

[NathanY]

Re: prop pitch?

Theory is 200 rpm's = 1 pitch