I have a 1994 5.0 GT. My issues started about a year ago. One day the mustang will start and the next it won't start. I started by replacing the fuel filter, pump and regulator. This was no help. I them replaced the coil. the car ran for a week or two. After it stopped running I replaced the coil and it ran again for a week or two. I then replaced the complete distributor and once again it ran for a coupe of weeks. Now it starts one day and not the next. I have since replaced the plugs and wires. Any and all help is greatly appreciated.