This fuel rail kit is designed to be used on Professional Products intake manifolds 53032 and 53033. The kit includes extruded aluminum rails, stainless steel mounting brackets and stainless hardware. A -06AN stainless braide crossover hose is supplied with -06AN swivel hose ends. A Professional Products 10686 EFI fuel pressure regulator is also in the kit. It is adjustable from 25 to 75 PSI. Additional AN fittings required for hookup are also included. For an adapter to use a standard square bore throttle body on this manifold, see our Dominator to Square Bore Adapter.