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Spark Plug Recommendation

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Old May 19, 2010 | 01:33 PM
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Default Spark Plug Recommendation
Got a 95 LT1 6 spd w a Vortech running only 5-6 psi boost. Basically all stock, fresh rebuild. Looking at NGK Iridium but can't find a "6" series colder plug??

Any help, or a good substitute COLDER plug, appreciated
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Old May 19, 2010 | 04:03 PM
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TR7IX - stock # 3690 !!!!!!!!!!
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Old May 19, 2010 | 05:19 PM
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Originally Posted by BlowerWorks
TR7IX - stock # 3690 !!!!!!!!!!
Who makes these plugs?
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Old May 19, 2010 | 08:47 PM
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Also found NGK TR6IX - #3689, which I will prob use....I am assuming that these can be gapped down to like 35-40 thous?

THANKS MR BlowerWorks!!!

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