Hello folks i have a 94 dodge that some one cut the cats off and put a flowmaster muffler on it but when i start it the truck sound like its flooding out bad and it will clear up when i put the pedal down but when i let back up its just starts missing and sounds like its flooding i took all plugs out they where new last week now they are covered in black carbon they all looked same like its runing way to rich any one have any ideas what i should do to fix this both o2 sensers are befor where the cats were waked of at so there still hooked up if any one can help thanks