Raceworks EFI Adjustable Fuel Pressure Regulator 700hp. Raceworks Fuel Pressure Regulators are machined from high grade 6061-T6 Billet aluminium. These regulators are an ideal upgrade to your fuel system whether it be a flow through or dead head system and will support up to 1000hp. All regulators come with 1/8 NPT gauge and boost/vacuum reference […]