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Thread: Spark plug help/advice

  1. #1

    Spark plug help/advice

    I am in need of some advice on a suggested spark plug and heat range to go with. I rcently changed over from gasoline to alcohol in my blown 540 BBC. I have an Enderle bird catcher on it and looking to my fellow alcohol tuners on where to start on with spark plugs. What would you advise on running and I know it has to be a couple of heat ranges lower than race gas, just need a starting point.
    Thanks,

  2. #2
    Senior Member SENIOR BUILDER
    Join Date
    Dec 2005
    Posts
    117

    heat range for plugs

    with NGK's, try heat range 9, should be close..

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Dec 2004
    Location
    austin texas
    Posts
    729
    im running autolite 133 in my 468" blown alky

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    Running NGK 9's in s/blk 1471 on alcohol.

    Zip.

  5. #5
    Senior Member RACING JUNKIE
    Join Date
    Jun 2003
    Location
    Hobbs, NM
    Posts
    842
    NGK 8s or 9s seems to work best out here. Don't go to cold on alcohol.


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