[Tincan18]

After posting many Q's about problems with my 1994 Mustang 5.0 and how sluggish it is off the line. I came across people with the same problem talking about something called a TFI Module? What is it? Most importantly would it affect my gas mileage cause i am getting 12-13 MPG and driving it like a grandma. Is there anthing else that could be causing this? NEED HELP!!!! Thank You