Price is per carburetor. We will machine your existing flange body carburetor down to a spigot mount, or to your own custom specification. Turnaround time is typically less than 6 days. 
Please email or call us with the specific details of your carbs prior to shipping. 
Please remove the butterfly’s, shafts, and all linkage components before shipping your carbs to us. Do not remove the regulator covers, fuel blocks, pumps or pump covers. 
We also have custom support plates available as needed. Most dual and triple spigot mount setups require a support plate or supporting fuel rail to keep the carbs in alignment on the manifold.