Originally Posted by evltwin
Don't piece meal it. You will always doubt something. Find a motor/vehicle that has all the parts and take them. It will be cheaper and you avoid the little things nobody knows about. Really get all the parts from one vehicle. They are not that hard or expensive to find.
He hit the nail on the head. In fact get the whole vehicle if you can, you'd be amazed what you'll be able to use off it. You'll need a TBI compatible electric fuel pump, regulator and a return line to the fuel tank as well. You don't need the TBI heads and you can use a 4 Bbl intake manifold with a Throttle Body to 4 Bbl. adapter GM even used an adpter on the early 454 TBI trucks but using the factory TBI manifold or equivalent aftermarket piece makes hooking everything up a lot easier.