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. Street Performance Flows 80 GPH free flow Shutoff pressure pre-set 7.5 PSI Fuel pressure regulator is not required Heavy duty construction for continuous high rpm operation Fuel body casting can be rotated to accommodate various plumbing situations Inlet & outlet tapped for 1/4" NPT