91 Cobra Clone
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Joined: Nov 2009
Posts: 1
From: VA
91 Cobra Clone
Have a 91 Cobra Clone with F303 cams, X303 Aluminum heads. Trying to find the right spark plugs. Had DENSO Iridium Power spark plug which were great, then went cheaper to AC Delco and not happy at all with them. Any suggestions to good plugs and gap size?
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