If the pump is a high-pressure model, a pressure regulator must be installed in the line between the pump and the carburetor, not alcohol compatible.
80000103 Carbureted Fuel Regulator
Holley Carbureted Fuel Regulator
Aeromotive 13212 Universal A2000 2-Port Return Style Carbureted Fuel Regulator
HOLLEY ALUMINUM BILLET CARBURETED FUEL PRESSURE REGULATOR 4.5 - 9 PSI
Holley HP Billet Carbureted Fuel Pressure Regulator 3/8" Black Aluminum 12-840
Holley Chrome Carbureted Fuel Pressure Regulator 1-4 PSI 3/8" NPT In/Out 12-804