I have one from a 66 Valiant Signet, the car had no engine with I think it had a 273 2bbl engine originally. Did they come this way on a non-hipo 273 car? It was a very early 66 built car too.
The information I have is they only came on the Commando cars due to the low vacume signal from the hotter cam. Of course never say never. Suppose one could order it if they wanted or have the dealer install one.