1987 offshore pro

  1. T

    Prop Size

    I need some help please. I have a 87 Grady Offshore Pro with full Grady drive bracket. The Boat has been repowered with a single 2001 yahama 250 ox66. I have a 14.5/ 17 pitch prop now and just not getting the job done. I know the prop is wrong but before I go try a hundred props I am hoping...