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    MerCruiser 5.0 MPI pinging/detonation at higher RPMs

    Hello Everyone! Long time reader, first time poster. So I've owned my boat, 2005 Trophy 2352, for almost a year now and I've been having pinging/detonation pretty much the whole time anywhere above about 3500 rpms. Below that I can run all day with no problems but as soon as I move up I'll...
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