NPT Gauge Port; Boost Reference 1:1. Die Cast Aluminum Construction. NPT Gauge Port.
Holley 12-886 EFI PRESSURE REGULATOR Black Die Cast Fuel Regulator, 59.5 PSI
Holley 12-887KIT Die Cast Carbureted Fuel Pressure Regulator Kit - Black
Holley 12-886KIT Die-Cast EFI Bypass Fuel Regulator Kit (15-60 PSI)
Holley 12-886 Die Cast EFI By-Pass Fuel Pressure Regulator 60 PSI
