Well, a year later, a year wiser, I have to come back here and say you guys are right. I had to have the streetfire coil, sure enough, a year later, about an hour ago, I was driving for work and BAM! The car starts running like a 60's beater, or a model T, so I limped it back to my house, and sure enough, CEL flashing away, cylinder 3 misfire. Pulled the boot off the #3 spark plug, no spark coming out. Shut it off, went into the garage and got my trusty old motorcraft coil pack, swapped the wires over and plugged it in, misfire gone. Unbolted the MSD and bolted the motorcraft in, and drove back to work. Unbelieveable.
