I found this carb on E-bay and suspect its someone's Frankenstein.
https://www.ebay.com/itm/23413443158...UAAOSwH41hFKqw
Ive never seen a 650 spreadbore with race bowls on it. The list # is 6210 but that number doesn't exactly come up in my Holley reference book. The book shows 6210-1, 6210-2, and 6210-3 but no 6210 by itself. And those do not have race bowls. Any thoughts? If its real I want to buy it immediately. Thanks