Congrats on your recent acquisition of a 1970 Challenger. Post the codes here or a picture and we could decode your fender tag. There is also some web sites that have all of the codes listed if you wanted to do it yourself. There is 7 places on you car to check for your VIN number. There is also some places to check for a build sheet. These are important for a correct resto, but if you want to resto mod your Challenger then these numbers may not matter. Just let us know and we will be more than happy to assist.
Bob