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    1973 Mercury 1150 Misfire on cylinder 3 and 6

    New: trigger, plugs, wires, harness, key switch, rectifier (non-standard with voltage regulator). I used a timing light and tracked down poor performance issues to intermittent spark on cylinders 3 and 6 only, 1,2,4,5 are all firing away. swapped plug wires and problem stays on 3 and 6...
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