I have 1994 ford rager that is having a problem it starts fine and every time it has 195000 miles on but if i do not keep my foot lightlyon the gas it will run really ruff and die. If i drive it is fine but when coming to a stop if i do not run it through the gears and rev it to a stop it will start to die uppon giving it gas to keep it runing it will some times kinda of back fire but not a back fire more like it is trying to clean out an old 2 stroke motorcycle then runs fine. Some time if i dont not stop it from stalling it will take some time to start and have the rev it up and clean it out problem then run fine. I have Changed the ing. coils, spark plugs and cleaned the Idle air control. Need some help have to smog the truck and know it will not pass Please help!