I have a 2013 pro 190 with a 90hp opt and a power tech 21p prop and mounted on the 2nd hole down. I have tried 4 different props now and moved my motor from different holes but I can not get my boat above 42mph. Can any one help me out and tell me what I need to do to get my boat going 45+. I have heard people talk about there Pro 190 going 50mph with a 90hp on the back. I think it might be this P.O.S power tech props I been trying out. Any help would be greatly appreciate.