Date code of casting has a HUGE part to play in this equation.
Second issue...this was a transitional carb after the 7028270 carb (oversupply) ran out. If an early carb, not worth much. If a late carb, not worth much..mid year...worth a little more. I would say in the 1200-1300 range.
Second issue is that unless you have a need for the carb for a low production, high quality resto, no amount of money is too much. Hell, if I needed an 8271 carb for my HO and baseplate date stamp was within 3-10 days...and I knew I could get a couple grand more for the correct carb...then, the cost/benefit analysis kicks in.
Just to have with no need or car? $500
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.