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250 HP to 300 HP??

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Old 05-10-2004 | 08:02 AM
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Default 250 HP to 300 HP??

I have 1994 Johnson 250 Ocean Pro, just bought a manual on it as this is my first outboard and I noticed it is the same displacement as that years 300 HP, what is the difference in these motors? what parts to upgrade to 300HP specs? my wheels are really spinning now!!!!
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Old 05-11-2004 | 07:06 AM
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I am not sure about Johnson specifically, but Merc usually has upgraded intake and exhaust systems, different heads, and runs on 92 octane instead of 87 (minimum).
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Old 05-11-2004 | 07:20 AM
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Look up " Monty Racing " in Fla. he build the fastest OMC's

www.montyracing.com
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