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close up look at cleaning a spark plug electrode tip with fine grit sandpaper

Mailbag: How to Cure Spark Plug Fouling During Idle
Q: I own a 1971 Dodge Demon with a 400. The 10.5:1 compression engine has a forged crank and “LY” rods, and has a balanced bottom end. The heads are 906 castings […]
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