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Old 08-15-2013, 11:45 AM
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Join Date: Apr 2008
Location: Glastonbury, Ct
Cobra Make, Engine: ERA2041 sold 2021
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Verify the spark plug heat range also. My plugs looked like that until I realized the previous owner had installed one step colder plugs. I installed the nominal heat range plug and they run much cleaner now.
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