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I had only two measuring wires - .050" & .054". I set the plug gap so the .050 would go thru easily and the .054 wouldn't go thru, giving me a gap of .052" to .053". Close enough, I suppose. The...

I'm getting ready to change my plugs. There doesn't seem to be enough metal for a gap that is over 1/2 inch. What plugs do you use?