Holley 12-428 Mighty Might Electric Fuel Pump Free Flow GPH 34 Free Flow LPH 129 1/8 in. NPT Inlet Compatible w/all Fuels 12 Volt 7-10 psi. Street Or Diesel Carbureted Steel Mighty Might Electric Fuel Pump Holley Performance 12-428 Mighty Might Electric Fuel Pump; Free Flow GPH 34; Free Flow LPH 129; 1/8 in. NPT Inlet; Compatible w/all Fuels; 12 Volt; 7-10 psi.; Street Or Diesel Carbureted; Steel; Authorized Dealer - 100% Satisfaction Guaranteed Holley 12-428 Warranty: Yes