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  1. 05-31-2010, 08:37 AM #1
    goof4080
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    Red, Black
    98 T/A M6, 79 T/A 6.6L

    Plug question...

    Fellow Trans Am Buds.....

    What plugs do I need to order.

    I was told TR5's gapped at 32-35 by my tuner

    they sell TR55's gapped at 60, would I want to gap the TR55's down to .035?

    or TR6's gapped at 35ish, but those seem to be for high power applications.

    My car is barely modded, CAI, Cat-back, tune. 98 LS1

    Help!
    Last edited by goof4080; 05-31-2010 at 08:39 AM.
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  2. 05-31-2010, 09:27 AM #2
    bills98ta
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    1998 Trans Am

    I was going to ask what for shot you were spraying ! I'm 14:1 with juice, and I gap at .035" - .040" with autolite 103's. I'd think you would be fine with the TR55's at .045 - .060...
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  3. 05-31-2010, 11:00 AM #3
    Cutlass
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Quote Originally Posted by bills98ta View Post
    I'd think you would be fine with the TR55's at .045 - .060...
    yep .035" is too small unless you're spraying nitrous
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  4. 06-01-2010, 10:15 AM #4
    bryceslu
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    00 NHRA Formula

    Get some iridiums and they are gapped at .040. Then you know your good because GM says so
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  5. 06-01-2010, 02:50 PM #5
    sjsingle1
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    2000 formula

    i use my champion IRs at .060
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