A car as delivered in the original post; sedan (light & stiff body), 273 “Commando” and “sport” suspension with (14” wheels, blue streak tires & a sway bar) would be a rather potent car for either drag or road racing. Even after fifty years it could be used in modern traffic. A car equiped in this fashion was typically used in competition.
As for value, as with most early A bodies, it is difficult to determine. Condition & a documented history especially if it has any sort of racing results, even local or amateur, may add value. This rather nice driver four speed ‘64 Barracuda brought over $10,000
1964 Plymouth Barracuda
