what are the best spark plugs for a 1997 firebird 3.8 v6.
life and performance
life and performance
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. I used them for a couple years when I was running the NOS 5176 dry kit, 125-shot. Great plugs.
NO way...couldn't be. Shed light please! I know imports run NGK...and there are a lot of NGK plugs. Fbody's run TR55 if I'm not wrong.
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