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    Cobalt Needs a Ring and Valve Job

    Hello... it has been a while and I now have a new boat... I am the proud owner of a 1988 Cobalt 203 with a 5.7L 260hp 4bcb and an alpha one outdrive. Basically the boat seemed under powered this summer and you could feel that the engine was missing every so often.. so at the end of the season...
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    Four winns foam

    I have a 1987 four winns 170 bowrider. The boat has a 4.3l and only reaches 41-43mph top speed with the correct prop setup (I have tried a bunch 19 21 23 and all are about the same top end, but with varying RPMs). In addition even with a 19 pitch it is slow to plane, and the boat feels heavy...
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    Top speed 4 Winns with 4.3l

    Hi everyone I feel like a little kid. All I seem to want to do is see how fast I can get this thing to go. Ahhh life's simple pleasures. My wife, would be happy just bobbing around and talking. Maybe I like the speed because it is too loud to talk over?! Anyway. The boat is a 1987 4 winns...
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    Four Winns Horizion 170 Top Speed

    I just bought a 1987 four winns 170 horizion with a 4.3l.rated at 175HP The boat is used but in ok condition. While the boat seems to run ok, its top speed is a bit underwhelming. with a full tank of gas and one person, it tops out at 38MPH. The current prop seems ok, but has a few minor...
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