my headers never glow and i occasionally i can run at WOT (wide open throttle) and then coast and it will stall out. when i start it up i most of the time get a loud back fire
From that picture it looks like its rich... when your plug is good, the electrode should look like coffee with creamer in it! But like the others have said, we need to see the tip of the plug the tip below the threaded end!
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