Quote Originally Posted by KDAVID1 View Post
I'm running 150 xr6 merc. 25p 58 at 5500--think more cup would pick me up a bit on mph?
What is the maz rpm on that motor 5750? you could down in pitch and bring up rpms. Need to talk to a prop guy. But 58 at 5500 on a 150 is real good speed.