I bought and I mounted a 1991 Pro 150 with a 14-1/2 x 20 3 blade SS prop on my 20' Cuddy Reinell that weighs 3K#. Took it out on a shakedown cruise yestereday but couldn't get it up on plane and at WOT only registered 3K rpm on the tach. My friend has an identical boat with an 4.3L I/O and his prop is a 17 pitch. Could it be my prop?
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