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    5.7, Q-jet vs Holley what makes more power?

    Can you squeeze more power out of a 5.7 mercruiser by putting a Holley on it? and if so how much? Also what other mods can be made to that engine without compromising reliability?
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    5.7 cuts out at high speed when using trim

    I have a 88 5.7 260 HP mercruiser that cuts out at high RPM. When I attempt WOT and use the trim it seems to cut the engine out, almost as if it's robbing power from the ignition system. I checked the connections on the trim pump, all tight, battery's new, 14 volts on the gauge when under way...
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