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My fiance's '02 needs plugs. I was wondering how to index the plugs. Where do they like to be? Has anybody tried anything? I thought I might also get her an aftermarket coil. I can find the universal gapping equations. I want to show her how well it can run! [email protected]
 

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is it a v-6 or 4 cyl? either way to index the plugs they work best with the opening in the gap facing the intake valve so the spark isn't sheilded by the electrode. place a mark on the porcelin of the plug where you can see it when the plug is installed.Younwill need a variety of indexing washers and to be truthful the results will be very little but every bit does add up.If you are running a v-6 coils for a 99-04 4.6 2 valve will fit but they need the boot and lead swapped out for the ones from the stockers. the choice of brand would be your call,summit,jegs,accell or msd all make them.
 
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