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Old 06-11-2013, 08:35 AM   #1
TCOC rel1
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indexing and filing spark plugs

Back in the day, we used to "index" the spark plugs so that the opening would face down toward the piston so that as much of the spark as possible would ignite the A/F. We would also"file" the sides of the electrode so that, assumably , some of the spark would fire around the electrode.

Do you think this would be worth the effort on our FoFo's? Below is a link to an article if you need more info.

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