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Re: Iridium spark plugs anyone use
My understanding is that those high-end spark plugs are meant to last a long time. That the exotic materials are for durability not added performance. I don't mind swapping out plugs, so I opt for the standard AC Delcos. My recommendation would be to invest the money in good spark plug wires, distributor cap with brass contacts, and a high quality coil if you haven't already.
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