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Old 06-30-2006, 08:54 PM
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Default heads/cam 346ci guys come in

what type of plugs are you running? i'm trying to decide if i should run tr55's or tr6's.
Old 06-30-2006, 08:55 PM
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tr55 here
Old 06-30-2006, 08:57 PM
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Either will work I've run both!Running tr6's at the moment though!
Old 06-30-2006, 09:00 PM
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NGK TR6IX. I'm ~11.3:1 and was getting a little knock when the engine was hot. Switched to TR6's and knock is gone, (93 octane). I have notched pistons with radiused notches, but I don't know if it was hot spots or right on the hairy edge. Anyway the cooler plugs helped.
Old 06-30-2006, 09:14 PM
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tr55 and runs good
Old 06-30-2006, 09:28 PM
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tr6s here.
Old 06-30-2006, 09:40 PM
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TR6 IX
Old 06-30-2006, 09:54 PM
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TR6s here.with 11-1 compression and a small 220 cam,the colder plug works better for me in controlling detonation
Old 06-30-2006, 10:28 PM
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TR-6 here
Old 06-30-2006, 10:49 PM
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Tr 55
Old 07-01-2006, 02:24 AM
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tr6 s here
Old 07-01-2006, 02:25 AM
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tr6 for both.
Old 07-01-2006, 02:37 AM
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TR6 IX and Copper. 10.8CR and 27.5 Degree Timing WOT
216/224 .551
241's flow 284/191 @550
Old 07-01-2006, 10:13 AM
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tr6 because i have nos. when i was n/a i ran tr55's.
Old 07-01-2006, 10:16 AM
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Originally Posted by mike c.
tr6 because i have nos. when i was n/a i ran tr55's.
Best to not run tr55s on the gas.

Ben T.
Old 07-01-2006, 10:20 AM
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For N/A applications what do you guys gap your TR6's at?
Old 07-01-2006, 03:31 PM
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I run TR6s gapped at .038 for my H/C/N combo...
Old 07-01-2006, 06:18 PM
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TR6'S GAPPED AT .045
Old 07-03-2006, 01:19 PM
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Yeh, Im wondering what I should gap my TR6's at too. Mods in sig, I should be around 11.6:1 compression
Old 07-03-2006, 09:00 PM
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TR55s N/A




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