1971 dart swinger

picked up a 71 swinger years ago 15+ ran vin code through a friend who at that time contacted galen gouvier who decoded it s fender tag said it was a 1of the 75 or so 340 4spd cars sold in Saskatchewan the car is missing the 340 the 4spd still there car is in rough shape as some one from another planet tried there hand at autobody it was not in a collision just rusty lower g panels ect I was thinking of getting the car slowly back in shape correctly but I need to know if this car is truly a 340 4spd survivor not to interested in a clone I do not have the fender tag handy but I do have it I could post the fender tag and have you gurus tell me if what galen said is true, the car is black with white interior 4 spd and 8 3/4 diff any help would be appreciated thanks lionel