The Carburetor Shop, (Jon H) a member of this forum, sells the most accurate kits for your carburetor. I rebuilt my Carter YF with a core and kit from Jon. It's been working flawlessly for the last couple of years. I don't think he rebuilds them any more but I might be wrong.

https://www.thecarburetorshop.com/FAQ.htm

I have had many carbs over the past 20 + years rebuilt by Daytona Parts Co. They've done an excellent job on all carbs. Ask for Tim Hewitt.

https://daytonaparts.com/

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)