What's a 1971 340 four speed Thermoquad worth

Collectors piece for a numbers matching collector car. Very sought after . Those $1500 carbs were near mint. a nice one with an I don't know whats inside description $300-$700 if you find the right 2 bidders. Put it on with a reserve and let the bidding begin. post a link to the auction so we can watch. Take a picture of the inners ,If its nice it will bring a lot more money.