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iridium spark plug

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Old Jun 13, 2005 | 11:10 PM
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bigbadbonneville
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Default iridium spark plug
NGK Iridium IX spark plugs: is this a better upgrade spark plug for my 1993 SSEI bonneville supercharger?
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Old Jun 13, 2005 | 11:12 PM
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Never heard of anything bad about the irridiums myself except for the price of them. My recommendation is to get one range colder and gap them a lil smaller if you are gonna pulley down.
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