Rich & others, I have a Nissan pickup with the z24 engine. I know it is dual ignition (8 spark plugs) don't know if it has 2 separate timing sensors, but pretty sure it has a two level distributor cap and rotary button to provide separate high voltage circuits. I can look into it in a day or so. could even pull it out and meaure the shaft, gear etc., if that would help (just let me know) my guess is you would have to modify it to make it work for you. Will have to wait for the rain to stop, seems theres still an airplane in the garage. BTW the four cylinder ford ranger has 8 spark plugs, but I think they have a distributorless ignition system.
Best Regards Riley Collins Rutledge, TN