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Old 08-13-2010, 05:05 PM
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.060" is mostly an emissions spec, performance specs are between .025" and .045". .040-.045" would be appropriate in your case. Running an extremely large spec like .060" is just hard on the secondary ignition system parts - the cap, rotor, rotor button, coil, plug wires as it raises the resistance at the plug a great deal with no real positive effect on engine performance.
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