BBK Billet Adjustable Fuel Pressure Regulator 94-98 Mustang GT 5.0L & 4.6L. BBK 94-98 Mustang 5.0 / 4.6 Adjustable Fuel Pressure Regulator. BBK Performance Parts Adjustable Fuel Pressure Regulators offer a simple way to tune and optimize air/fuel ratios and achieve a few extra horsepower. Each BBK fuel pressure regulator is made from high-quality CNC […]