I have a 94 with a 5.0 under the hood. My R's jump around like a maniac and then eventually she dies on me. I have come to believe it is a TFI issue, but am needing reassurance. I had a very similar issue with my 93 5.0. replaced the TFI module and no issues afterward. The difference between the two is the 94 only happens if i'm running her hard. Just wondering if it is in fact the TFI coil.