Thread: spark plug options
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Old 10-19-2025, 07:36 PM
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1967 4K 1967 4K is offline
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I used recommended brands like AC, Autolite, Champion. All would foul after a short time of use. Changed to NGK and no problem.
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1967 Camaro SS 396/375 4K
2002 Camaro 35 Anniversay Z4C-WU8
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