The Carburetor Doctor has a full line of Holley carburetor rebuild kits, floats, choke thermostats, parts and service manuals for 1, 2, 3 and 4 barrel Holley carburetors from 1934 to today. We have carburetor parts for Holley automotive, marine, industrial and agricultural applications.
Our kits are made in the USA and feature the highest quality ethanol-resistant components. We have premium kits for many models which feature hard-to-find parts like idle mixture screws, pump return springs and check valves. We have a complete line of choke pull offs and new brass floats for most Holley carbs, as well as nitrophyl floats.
Holley carburetor numbers are referred to as 'List' numbers. They are usually stamped on the carburetor body and preceded by the word 'LIST' or the letter 'R'. Numbers that are preceded by '6R' or other combinations of numbers and the letter 'R' are casting numbers referring to a particular part of the carburetor and cannot be used to identify the carburetor.