why not the stock harness? im using my stocker on my b16
:edit:
oops i just noticed you have an sir-1 engine. the stock eg civic harness wont plug into alot of things (ie distributor, altenator, god knows what else).
there is no OBD-0 USDM harness for the sir-1. i would use the stock EG harness and the plugs off the sir-1 harness that you have to wire.
i have an sir-1 motor in my eg, but EVERYthing has been changed to 0bd-1 spec plugs, so im using my entire stock harness + separtate vtec switch and oilpress wires.