I have the same unit I think (Century Ignition Parts, from DS) and the instructions for mine say that you need to plug the block connector in and then "Remove either of white and black wires of original regulator. Wrap the removed terminal with insulating tape and do the same with the other wire (black or white). Put one terminal of new ic rec/regulator to white or black wire which are removed from original regulator and put the other terminal to the other wire. Don't remove the green wire of the original regulator, keep it installed. Green one is earth wire".
The associated drawing shows the double - ended spade wire and says "connect to white wire and black wire which are removed from the original regulator".
Mine works fine when connected in this way, however I am no electrician so any more technical questions than those that I can copy from the instructions for you would probably be beyond me!