Ya bud, your running the wrong setup, first problem is you need to convert to OBD1, i dont know why you would want to take a good motor like the Z6 which is OBD1 and go backwards and use OBD0.Then get a P28 ecu(chipped or not, John Vega at Phearable.net sells them prechipped for $175 and it will be tuned by him), and buy the OBD0--OBD1 conversion harness kit from John Vega, and a Vtec OBD1 dist.
A little tiny oil leak is not goin to make it not work, all hondas leak a little bit of oil.Do all that above and everything will work.