http://www.ebay.com/itm/ZENITH-EARLY-BRASS-CARBURETOR-UNUSUAL-MODEL-T-FORD-ACCES ORY-RACING-AIR-HORN-/221167099663?hash=item337e961f0f&item=221167099663&pt=Vinta ge_Car_Truck_Parts_Accessories&vxp=mtr
I was wondering what it fit also. Some cars like Dodge maybe Overland had carbs that bolted directly to the head or block with the exhaust on the other side of the block. This one looks like the hot air pipe would be too short for that.
Zenith carbs and some others that did not have a hot spot intake had a fresh air port in the heat tube. This saved having to take the hot air pipe off when it wasn't needed like on a Model T.
That is off a Briscoe truck I believe.