If I were you, I'd install it on the truck and go for spin. Drive around at 30-40 and see how it goes. Jack-rabbit launch at the stop light and see if it stumbles. Floorboard it on the highway and see if it stays steady.

If the drive doesn't result in any intolerable behavior, leave it on. If it does, rebuild the other carb.

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)