I have a 1982 Evinrude 9.9 (Model E10BACNS)<br /><br />I understand that it is possible to increase the power out put to 15hp.<br /><br />Can anyone tell me what parts I need to do this?<br /><br />I am using the motor on a 3.3m Inflatable.<br />I have a set of dolphin fins fitted on the...