Thread: AC Delco Spark Plug
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Old 06-08-2009, 09:54 PM
brianc427 brianc427 is offline
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Default AC Delco Spark Plug
Does anyone happen to know what AC Delco spark plug was installed in the '69 COPO cars (with #840 heads) from the factory? Or what a good AC Delco replacement is?

Thanks.
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Brian Cunningham
69 Chevelle
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