Spark Plugs for 73 Dart Custom

Scody21 said

I use NGK BKR6E in my 10.2/1 340, and my 02 Ram. Seem to be a good over all heat range for my junk...

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Agreed, I did a lot of research on plugs. A mopar service bullitem years ago instructed to replace the plugs that are equivalent of ngk bkr5e with bkr6e to reduce the occurrence of detonation