It Varies? Some go good, some don't. Even the infamous "OINKSTER" only got $299 for a set. And it was relisted once. Timing is everything too, You need a restorer who needs a set and pays well. I have a set sitting in pieces being cleaned, I have 4 new repair kits.
I am hoping to sell in the $300-$400 range
This was a completed ebay ad recently from OINK:
Livin in "CheektaVegas, NY
Still have a Kaw! 76 KZ900 Pro-Street.
Went thru 25 of these in 40 yrs.
And The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Exactly as z1kzonly stated, market is sluggish on all the Z and KZ900 carbs at the moment. Looking to purchase now would be the time, selling not so much. I have completed sets of all and the only one I bothered listing is the set of ribless, the 1470's.