Here is an unrestored, original Ball and Ball Single Barrel Downdraft Carburetor which is believe could be used on 1930-1950s Chryslers. The throttle bore is about 1 5//8" and the center to center mounting holes length is about 3". The main body is marked "0-635" and "Ball and Ball Carburetor MFD for Chrysler Corp Detroit, MI" and the mounting flange is marked "1 237" The top is marked "6-595" It appears to be a good, original carburetor to rebuild but I know nothing about it. I do not know what year or models its fits, if someone does, please let me know. Take a look at the photos, what you see is what you get. Price is 60.00 including shipping in the USA. I accept PayPal for payment. Email directly at: email@example.com or call 734-730-4274. Thanks.