[FED 387]

Larry--- you might look into using Berrymans Chem Dip-# 0996 carb cleaner--dont soak parts for more than 30-45 minutes at a time and "lightly" brush the carbon with a parts cleaning brush ---then take a shop towel and "dry and rub the carbon" it will come off just takes time depends on how bad it is may have to repeat the procedure multiple times--- Dick