keep it stock

  1. h34gunner

    Buick V 6 Delimma

    I think my 3.8 Buick has a knock... at times it's muffled, some times not even noticeable and at times rather loud.. I was convinced it was simply spark knock or dirty gasoline.. I rebuilt the carb, rebuilt the distributor, set the timing every way possible.... the knock almost disappears when I...