ACCEL DFI 74745 Fuel Pressure Gauge Deliver pinpoint accuracy with either Original Equipment Manufacturer or aftermarket multiport fuel injection systems Engineered for 1986 to 1996 Corvettes Camaros and Firebirds with tuned port injection or LT1s With the addition of a fuel pressure regulator they can increase or decrease fuel pressure for maximum power Accurate from 0 to 60psi in 1 psi increments and comes complete with a mounting bracket White with black markings and a chrome bezel finish 1.5 inches across and features an easy to read 270 degree sweep