Making my Dart road trip worthy

Depends on the state of your car. Do a safety check replace anything questionable. New belts and hoses and tune beyond that it's a crap shoot . Years ago I dragged a 65 valiant out of a field did complete brakes and fuel system plus new hose and belts and tune and drove it 7 years all year around and only had the water pump let me down. Took it off the road out of boredom wish I didn't sale it. Older car can be more reliable cause of there simplicity.