What's a 1971 340 four speed Thermoquad worth

I hope this doesn't get me into trouble somehow, but what is this thing worth? I was going to run it on my 68 Cuda with 340 , but I have decided against it. I'm going to
stick it on Ebay, but I don't know what to ask for it. Its complete , and linkage moves just fine. Being a four speed carb I think MAYBE it had a dashpot (??) , I don't know but there's not one on there now. I have not opened it up to peer around inside. This isn't an ad, don't ask to buy it, its going on ebay.