Thread: E3 Spark Plugs
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Old 04-02-2012, 08:49 PM
olddog olddog is offline
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Join Date: May 2006
Location: St. Louisville, Oh
Cobra Make, Engine: A&C 67 427 cobra SB
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My son put them in a bone stock 93 T-Bird with a 5.0 engine. It missed badly. Put the old plugs in and it ran like a top. Took them back and exchanged for OEM plugs and never looked back.
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