Nice car, no doubt. Its not what I would call a standard Challenger. The 340 would of been part of the R/T package and an optional engine at that. You can see if its what we call a numbers matching car. In other words it has all the original equipment. The same engine,trans, rear-end. And most other items that it came with stock. It has more value to purest if the car is #s matching. If not, no big deal. The car is still real hard to find and rarely seen on the street. That is a real nice find and I hope you and your Dad have a blast bringing her back to ship shape.