69 Notchback Mod Top $5000 Illinois. Marketplace NOT MINE

Well I searched Hamtramck and no mention anywhere of 340-S as an option. "S" and 'cuda pkgs yes.
I googled "69 340-S" and came across this link, IMO proves(to me) that the 340-S were simply engine callout for the Formula s cars.
Black tail panel and 340-S callouts. Wish I could read the fendertag in pics. Beauty of a cuda!
COAL: 1969 Plymouth Barracuda 340 Formula S – Heading East