Try going to or to get the value. There you can enter in any information & get a quote.
With those problems not very much since a ****** is so expensive to replace (its the brain of the car and no one wants to work on them) probably abt 10 grand maybe less
The best site to go to is but also try to see what other people are selling theirs’ for.
The book values are most likely not going to go past the year 1981. Judging by your details, and if you’re uncle paid 8 grand for it, with the trans messing up in it, I would quote some where around $6500-$10,000 if it is the 289 Pony Car, in mint condition without any major mods, that would be a good asking price. I wouldn’t go over 10k though. That’s just my opinion.
Put a sign on it for $8500 OBO and see what you can get for it…