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Thread: plug reading

  1. #1

    plug reading

    hi guys
    need to know what you think......I have a ZZ4 350/355 i check the
    plugs today.....the porcelain is off white the ground strap at the top is a
    lite green color no oil on plugs. do you think i need to back off the timeing a
    little.... timeing inital 12 total 34

    ZZ4 350/355
    intake power plus open plain
    demon 750
    edelbrock rpm heads 202/160 64cc
    crane hydraulic roller 234/242 adv duration 296/304 lift 539/55
    1.5 roller tips
    msd distrbutor no vacuum advance.................thanks....Butch

  2. #2
    Administrator RACING JUNKIE
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    Any pictures of the spark plugs?? Hard to say from here
    There Is 1 Thing Better Than Cubic Inches,,,More Of Them

  3. #3
    Senior Member RACING JUNKIE
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    Butch my friend...good to see you post.

    Like Tom said, post a pic of your plug....these guys will tell you exactly what you need to do, and what is going on with your plugs.

  4. #4

    plug reading

    this is something like my plug the porcelain
    and ground are like mine ......mine are not BLACK like this one

  5. #5
    Administrator RACING JUNKIE
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    Doesn't look to aweful bad,but I got a question? Why are you running a power tip spark plug?

    Is this a strickly strip engine? Or do you run this on the street too?
    There Is 1 Thing Better Than Cubic Inches,,,More Of Them

  6. #6
    street car autolite 104 plugs

  7. #7
    Administrator RACING JUNKIE
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    I think the plugs look fine for what you are doing with it, I wouldn't touch a thing 8)
    There Is 1 Thing Better Than Cubic Inches,,,More Of Them

  8. #8
    ok tom......thanks.......Butch


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