LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Question about plugs

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Old Apr 13, 2009 | 09:32 PM
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Hey guys sorry for the dumb question but idk which heat range would best fit my application for ngk plugs, it confuses me, could someone help, thanks
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Old Apr 13, 2009 | 09:40 PM
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TR55 should be just fine! depending on the compression, maybe the TR6. (1 Step colder) Hope that helps
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Old Apr 13, 2009 | 09:41 PM
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wel my heads were ported and polished with bigger valves, idk what my compression is
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Old Apr 13, 2009 | 10:10 PM
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i would say the TR55 will do fine.
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Old Apr 13, 2009 | 11:15 PM
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I was told TR55's and TR6's with nitrous
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