I have a 1970 Steury<br />18ft deep V <br />OMC I/O 120hp repowered 1978 2.5 liter <br /><br />OMC NON-thru the hub exhaust 2 tooth pin drive<br /><br />the prop is a 13 1/4 dia x 17 pitch<br /><br />the boat and motor is around 1500 lbs est.<br /><br />My top RPM is 3800 on the tach<br /><br />what would be the top recommended RPM for this set up<br /><br />thanks<br />sod
