Any one know where i can look for old cars in arizona?

Craigslist, Autotrader are two places to start. I didn't know Chevy made Novas in the 17th century. Everyone is looking for a 1970 Roadrunner of Challenger, so expect to pay a lot. If you are in the Phoenix area, go to the Scottsdale Pavillions (Pima Rd/Indian Bend Rd) any Saturday in the late afternoon. There is a long-running informal car show that takes place in the parking lot by the McDonald's and Home Depot. You may find what you're looking for there. Maybe talk to some owners there and they can point you in the right direction.