That means there is a leak at the base of the carburetor and the intake vacuum is sucking in the carb cleaner and conking out. The base is warped or the manifold surface is warped, or both.

Most likely your carburetor needs to be repaired (if possible) or replaced.

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)