Greetings Barn - can you read this plug for me? I have a stock ‘51 F1 8ba w/2bbl 94 carb. I removed this plug today after a 30 mile 50-55mph road trip. Truck ran great with no issues. Plugs are NGK’s 6BL. Jets are .51 (if I recall correctly). It appears to read a rich fuel mixture to me. Anyone else have a plug look like this and what step corrected it?
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