It's said to be for a EEC-IV '84 CFI Town Car, I assume the '84 5.0 Bird/Cougs used same???
I've never owned a CFI anything, jumped straight from carbs to port injection...
(http://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=download&Number=38617&filename=d204.jpg)
My 84 Cougar started as CFI but never had a rotor like that.
The original rotor from my 84 3.8.
The replacements had the solid bar instead of the two wires thing.
I don't think any Town Cars came with a 3.8.
My car had one of those on the old distributor.
I assume the mounting is different than the std rotors, so dist is different???
I think that is the early style 83 cougar type, my brother had one like that on his 83 cougar 5.0
Bolt on vs. push on rotor. Yes, different distributors, not interchangeable.
My Tbird has this rotor 84 5.0L