What kind of EF? I.e. Si, Dx, or Hf? If it is a Dx then you need to do an MPFI swap, it is rather easy as long as you have a complete ZC motor, wire harness, and ecu all you really need is an injector resistor box, and a little bit of time to do some simple wiring to put the motor in. It is not as hard as people make it out to be. If you have an HF or Si then it is pretty much plug and play with the stock hf/si wire harness.