1971 Chevy Monte Carlo not running has engine and transmission needs tune up

1971 Chevy Monte Carlo with tilt wheel with a 350 engine and transmission the vehicle is not running at this moment. The vehicle is missing the front seats, floor pan is solid and the exterior of the vehicle does not have any rot on the body with very light surface rust. The vehicle has great potential I am selling as a project car. The previous owner stated that the engine was in working conditions before the vehicle was parked.