OK, ive looked everywhere i know to look to identify this mystery eec. all i know is that its for a 5.0 and its Speed density. Im trying to see if it will work for me. The computer code on the eec is "VY3" it is a EEC-IV SFI-SD1. The p/n is E6SF-12A650-Y1D. Im looking for the car it came out of, and auto or manual tranny and 5.0 HO or standard firing order. Like i said, i already know its speed density. I would appreciate anyones help with this. oh yeah, also in big letters up top it says "C6A07" if that means anything.