Oil Color

Discussion in 'Big Block A body Tech' started by 71Twister440, Jul 10, 2018.

  1. 71Twister440

    71Twister440 Active Member

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    NGk FR4, darker pluga next to the new plugs are before i cleaned the carbs and was at about 14 initial timing, the 1,7,8 plugs are also FR4 but after with 18 initial timing
     
  2. yellow rose

    yellow rose Doctor of Thinkology.

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    That's a bit strange. 4 is a hot plug yet they look a bit cold.