Fits 1986 1993 Ford 302 351 Adjustable Fuel Pressure Regulator Billet 1706 engine management systems 55 8 V 1975 1986 J8132372 CRN 55 8 V 1975 1986 Chevrolet C20 4 8 V 1982 1985 Cadillac DeVille 3 including recommended and required hardware BBK billet fuel pressure regulators are a great way to tune your EFI vehicle to obtain optimum air fuel ratios and achieve maximum horsepower with the simple adjustment screw located on top Each BBK Performance fuel pressure regulator is made from high quality CNC Machined billet aluminum and is hand assembled and pressure tested with a precision leak free diaphragm that will allow fuel pressure adjustment to approximately 65psi