Description
Edelbrock Fuel Pressure Regulator 4 1 2 to 9 psi 3 8 in NPT Inlet Dual 3 8 in NPT Outlets Single Regulator Mounting Plate Regulator Fuel Lines Square Bore Black Clear Anodized 42031R Specially designed ports for increased WEI7155 Specially designed ports for increased flow and velocity over standard big block cylinder heads (available separately) 4 1 2 to 9 psi They have a high horsepower potential out of the box