There could be a bucket of gold coins under the hood, but I doubt it.
They all came with 305 or 350 cu in engines those years, 1978-1982, L82 preferred but in that condition it would still only be worth $3000 to $5000.
Condition, condition, condition!
Assuming you have minimal or no experience with cars
- Read the manual or grab a friendly gear head, top up all fluids, charge the battery and see if it starts and runs.
- Assuming it does, do all the gauges, switches and controls work?
- Inflate the tires, attempt to back it out of the garag,e give it a good wash and look at the exterior and interior for obvious damage.
- Go to the Kelly Blue Book, Edmunds and/or Hagerty web sites for general valuation information.
All of this can be done by anyone with an hour or two of time and no more skills than the ability to wash a dish and it will at least get you into the ball park.