I have a 1978 26' Reinell C26 boat with a single OMC Ford 302 engine at 190 HP. The boat only gets 13 mph; barely on plane. Is this a normal speed for a 190 HP engine in a 26' boat with a cabin, or is there something wrong?<br /><br />I replaced spark plugs, wires, cap and rotor, fuel treatment with carb cleaner, etc. The carbn is an Edelbrock 4 bbl and tuned it per the Edelbrock web site.<br /><br />The tach quit working, so I'm not sure how many RPM it's up to. Once it's reconnected how many RPM should I be looking for at WOT? Is 4,000 my goal?<br /><br />I understand if it's over that my prop is too small and under might point to an oversized prop or engine problem.<br /><br />The boat is kept at a marina, so I'm looking for things to do without pulling it out of the water.<br /><br />As a last resort, what sort of performance gain would I expect if I dropped in a higher HP engine? I.e. how much faster might I get in a 260 HP or 300 HP?
