Running lean or okay

Discussion in 'High Performance Modifications' started by harkz28, Nov 23, 2017.

  1. harkz28

    harkz28 New Member

    15
    0
    Aug 22, 2005
    'm going to attach a picture of some spark plugs can you tell me if I'm running too lean or okay. 20171123_085510.jpg
     
  2. COPO

    COPO Veteran Member Lifetime Gold Member

    15,924
    179
    Sep 15, 1999
    Ontario, Canada
    On the lean side. I can’t make out the color
    on the bend. When timing is correct the color change
    will be at the bend.
     
    Last edited: Nov 23, 2017
  3. larrylarry

    larrylarry Veteran Member

    1,302
    38
    Dec 22, 2011
    San Antonio Tx
    Doesn't seem to be really lean otherwise they'd be bone white, being rich is better than being lean but neither is correct. FYI a performances built engine likes being rich or needs to be rich to run well.
     
  4. Dave Nelson

    Dave Nelson Veteran Member Gold Member

    3,132
    373
    Dec 19, 2003
    Vineland N.J USA
    Can you post a side shot of the ground straps?
     
  5. COPO

    COPO Veteran Member Lifetime Gold Member

    15,924
    179
    Sep 15, 1999
    Ontario, Canada
    Should look something like this.
    [​IMG]
     
  6. muscl car

    muscl car Veteran Member Lifetime Gold Member

    Post a close up pic of the ground strap ant the bend !!!
     
  7. muscl car

    muscl car Veteran Member Lifetime Gold Member

    RS1979 likes this.
  8. 77 cruiser

    77 cruiser Veteran Member

    425
    11
    Nov 17, 2006
    Frostbite Falls MN
    If that isn't after a WOT run & shut off clean it won't tell much.
    If it's after just cruising it's fine.
     

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