Your harness is for electronic ignition- the Accell distributor is points style (dual points...). To do it right would entail eliminating the ECU and it's associated wiring and rewiring for points. You could tap into the IGN1 and IGN2 circuits, install a different ballast resistor for points (different values from electronic ign), basically "retro-wiring" the ignition to pre-electronic form. I honestly don't know why you'd want to do this, though. Just get an electronic distributor and drop it in, and sell the Accell.