I have a Crownline 250CR with a 454ci engine(310 HP) and 18.25" prop (19 pitch). I purchased it with a rebuilt motor.<br /><br /><br />My problem (or maybe it is correct) is that I am only getting 3700RPM (this is measured with in-dash tach). My top speed is 32.5 knots (gps). <br /><br />I would think that I should get at least 4500+ rpm's and should be able to run about 40+ knots.<br /><br />Anyone out there with the same or similar setup?<br /><br /><br />Thanks,<br /><br />Ronald
