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hoykidoyki

10-08-2005 09:21 AM

Engine Performance

I have a 1989 Larson 21' Senze with a 5.7 V8 engine. I'm using a 21p 4 blade stainless prop. I'm only getting 57mph at 4500 rpm's out of it. What can I do to the engine at get more HP from it, like what kind of heads, cam, and intake and carb. I'm also planning to change to through transom exhaust.

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