ddennis
Petty Officer 1st Class
- Joined
- Aug 15, 2006
- Messages
- 351
2002 merc 75 2 stroke classsic, 17.5 foot nitro bass boat. Current prop is a 23 pitch (unsure of diameter, think 12.5) I have an opportunity to get a 4 blade 21p stainless that is 13.75 Other than gaining a few RPM, what kind of performance will I see? I currently run out at about 40 on the gps at full fishing load.