I have a 91′ P2 with a 96′ Johnson 175, 20″ lower unit. I’m having engine height adjustment difficulties and wondering if anyone else has a P2 with a Johnson hanging on it. I have a Vance 6″ manual jackplate and it is adjusted as low as possible. I have a Raker 3 blade 24 pitch prop. I can only run 57 mph. It seems I need to drop motor even further. Was thinking about a 10″ jackplate. Any suggestions?