Found this, to much for me, but

Did anyone notice that this may very well be a Mexican built Duster? Check out those hood scoop emblems, hard to make out but I think those are those Mexican "318" ones....also, a 4-speed was common in these cars.....notice the hood scoop has the hood tach bolted to the scoop? That's original for these Mexican built cars with both of these options. They never had a 340 though but engines come and go over the years....this actually might be a pretty rare car.