Holley 110GPH Mechanical Fuel Pump Pontiac V8 # HO12-389-11Holley 110GPH Mechanical Fuel Pump Pontiac V8 # HO12 389 11 Holley mechanical fuel pumps range from 80 GPH to 225 GPH in many various applications to meet the fuel demands of most engines. Whether you are looking for a street performance or an all out race mechanical fuel pump, Holley has the pump you need. Features: High output fuel flow Flows 110 GPH free flow Shutoff pressure pre set from 6. 5 to 8 psi Fuel pressure regulator is not required Heavy