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What Spark plugs are you guys running?

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Old Aug 5, 2007 | 06:06 PM
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03chevy5.3rcsb
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Default What Spark plugs are you guys running?
Time to change plugs. What would be the best for a N/A no N2O price doesn't really matter, and what gap? Thanks in advance.
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Old Aug 5, 2007 | 06:10 PM
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OEM's are probsbly fine if you don't spray
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Old Aug 5, 2007 | 06:12 PM
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I just always us AC Delco. Just don't get Boch, man thoes are the worst plugs I have ever had. My truck ran like crap, I put the AC Delco's back in and it ran like a champ ever sience.
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Old Aug 5, 2007 | 06:13 PM
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Ngk Tr55
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Old Aug 5, 2007 | 06:17 PM
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NGKs here, love them
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Old Aug 5, 2007 | 07:13 PM
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Hemi Killer
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NGK TR6, I was running NGK TR55s. My motor seems to like the TR6s. My old cammed 5.3 liked the TR55s.
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Old Aug 5, 2007 | 09:24 PM
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ngk tr55s
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Old Aug 5, 2007 | 10:09 PM
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tr55's .060 gap
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Old Aug 5, 2007 | 10:25 PM
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AC/Delco Iridium part 41-985 gaped at .040-.045 Ecspecially if you have headers LOL Its a pain to change a couple of plugs on My OBX headers and I dont want to mess with them for a while!
Last edited by Black Plague; Aug 5, 2007 at 11:42 PM.
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Old Aug 6, 2007 | 01:52 AM
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I had switched to the ngk tr55s and my truck ran like crap with them. Switched back to the AC/Delco Iridium and it ran great.
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