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piston bbc bad help 454

  1. Very bad BBC shaking!

    Engine
    Hey guys posted several weeks back about how bad my 454 is shaking, making my whole car shake. Well my dist. cap was fried and changed it and that helped the shaking but some of the shaking is still their. I did a leak down test and all of my cylinders cold came in at 15-20% except number 8...
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