Holley 170 GPH Mechanical Fuel Pump (HO12-289-20) bearing Features a heavier Diaphragm pressure

Features a heavier Diaphragm pressure plate which will have between 25-30% more clamp load more clamp load over standard specifications

HO12-150 - HOLLEY 150 GPH ELECTRIC FUEL

making it the perfect solution for users who need to monitor and data log boost at high RPM on tuned engines

or naturally aspirated applications

Holley 170 GPH Mechanical Fuel Pump (HO12-289-20) bearing Features a heavier Diaphragm pressureHO12 289 20 S B FORD 289 302 351W 170GPH Suit SB Ford 289 302 351 Windsor Part Number: HO12 289 20 High Output Fuel Flow Flows 170+ GPH Free Flow Shut off Pressure Pre set at 8 PSI Fuel Pressure Regulator is Required (Recommend Holley p n 12 704) Heavy Duty Construction For Continuous High RPM Operation Redesigned High Flow Valves Always Ensure Adequate Fuel Delivery Fuel Body Casting Can Be Rotated to Accommodate Various Plumbing Situations 3 4" 16