If you look, there is a list on what you need to swap over to an EFI set-up. A few things off the top of my head that you need:

Main Wiring harness
Main fuse box
Main Circuit box
Fuel pump
possibly the fuel injected fuel tank
ECU
There are a few other electronic parts as well. The best bet is to buy a junk fuel injected accord for around $500 and strip all the EFI parts out of it.