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Reading Spark Plugs

683 Views 0 Replies 1 Participant Last post by  mopar4u
If you put brand new spark plugs in a sled, how long should you wait til you can start looking at the color of the plug and take readings? Can you put the plug in, run the sled full throttle for a set distance, cut the sled while still wide open, and take a reading or do you need to break the plugs in a little then do the full throttle check?
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