This is the Speed Pro fuel rail disassembled for inspection. Ed is using 64 lb/hr Bosch injectors to feed his hungry 390. However, you can use a variety of injectors available from Ford Motorsport SVO and Speed Pro. Choosing an injector is like jetting a carburetor--too lean and you will burn pistons. Ed bored holes and welded injector bungs into an old Edelbrock Streetmaster intake. All you need is a single-plane aluminum intake manifold.