AO Platinum Member
Join Date: Feb 2002
Location: The land that Time forgot
They aren't the same now, are they?
The "Fletch" alloys have black painted bits while the 164 ones are unpainted. Recent Alfa alloys are usually Speedlines, which is also at odds with the Zender theory.
The "Fletch" alloys look like some that were available in the AR accessories catalogue (and possibly made by Zender, as discussed). Zender is definitely where I'd look, or try the AR dealer.