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Originally Posted by Peo
I have a 351 stroked Clevland with 8 TWM trumpets controlled By Motec. One plug in particular is oily and is always black, the others range from black to light biscuit color. Car performs well approx 500 rear wheel hp. How do I get clean consistant plugs
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While I have heard of your induction system, I have zero idea on how to tune it. As for the black plugs, they are either
oil or carbon fouled. Shiny for
oil and dry and sooty for rich fuel mixture. Obviously, get the fuel system tuned right for carbon and look at the mechanical condition for
oil fouled.