why are you putting it in your car? If it's for fuel economy I don't understand why you would put the z6/y8 intake manifold on it.

You'll need the correct ecu (p07) for the motor to run correct and wire it for it's 5-wire 02 sensor. There are also egr related plugs you'll need from the vx harness. There is also a black egr box that attaches to the firewall you'll need.

I had one of these in my old EF and I averaged 45-50 mpg

Check out this thread on honda-tech: http://honda-tech.com/showthread.php?t=1509265, it should help you out.