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  1. #1
    Slow'er'Ass Mr. Luos's Avatar
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    Aug 2005
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    Thornton, CO
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Plugs and gap....

    LQ9 402ci
    11:1 compression
    Good sized cam

    It is running overly rich right now...enough to continue to foul plugs. Should be having this taken care of early this week. NGK TR55's at .048" are what I was running.
    I am having a problem figuring out the best plugs and best gap.
    What are guys successfully running??
    What to avoid?
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    Aug 2005
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    23,773

    Red Tint Jewelcoat
    2008 Trailblazer SS

    So no one has a stroker?

  3. #3
    Junior Member
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    Jan 2006
    Location
    Jackson, South Carolina
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    93 Notchback

    i would close the gap to .030.

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by SoldMySS4a5.0
    i would close the gap to .030.
    Could you explain why?
    That seems WAY small.

  5. #5
    Junior Member
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    Jan 2006
    Location
    Jackson, South Carolina
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    93 Notchback

    tighter fire, less chance of fouling with the excess gas
    Sold- 2001 SS 11.87 @120.5 Mph 465 rwhp 613 ft lbs of tq (gas).NOW: 93 5.0 Notchback, 347 stroker daily driver with A/C and P/S. Lentech Tranny 3000 stall, MT Drag radials. 11.91@113 on motor.-10.90's @ 123(1.51 60'), on a little 75 dry shot. 345 rwhp(motor)- 426 rwhp on gas.

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