I have an 89 20' Proline with a 1.6 litre OMC Seadrive. Origional engine same as 110 Johnson. Over the last 15 years I have swaped props many times and no longer know what origionaly came on the boat. Anyway the prop I have on the boat right now is not the most efficient prop I have ever had on it and it has been refinished many times. I am planning on replacing it and was wondering what size and pitch you guys would suggest. I tried contacting Proline but they have no support number or web address on their site, they just refer you to your local dealer.
