1970 cutlass pace car been hiding since my grandpa garaged it
 

As far as I know I have a 1970 pace car y74 model with original engine/Trans unfortunately not a track or festival car as far as I can tell. Well unfortunately I took it to the tire center and a service truck backed into the rear quarter panel on the passenger side so now I'm forced to restore it early. Input on how to make it stay authentic on the restoration and or desire able upgrades or w/e input would be nice. Sorry in advance if I don't reply quickly.