The aeromotive A1000-6 Injected Bypass Regulator was developed for high horsepower EFI(Electronic Fuel Injected) applications. This unit delivers performance, long life and reliable operation. Base Pressure (vacuum line disconnected) is adjustable from 30 to 70 PSI. Fuel pressure will rise on a 1:1 ratio when referencing boost. 1/8" NPT gauge port, type II bright red and clear anodized coatings. This unit is also alcohol compatible.