Die Cast EFI By Pass Style Fuel Pressure Regulators

Holley does it again with their new die cast aluminum fuel pressure regulators. The same Holley quality that you expect at a price point that every budget can handle. The regulator contains 3/8" NPT in/out ports, a 3/8" NPT return port, a 1/8" NPT gauge port, and a 1/8" NPT vacuum port for Boost Reference (1:1). 1/8" NPT barb fitting for boost reference port also included.