This is a diagram on swapping from points to an electronic ignition. The setup includes a MSD 6AL (rev limiter included), Blaster 2 Coil, Pertronix Ignitor, and a MSD tach adapter so you can use your stock tach. I also used Magnecor plug wires. The stock regulator mounted below the coil and the resistor mounted above the coil are not necessary with this setup.
The Pertonix Ignitor is a direct replacement for the points. You can buy one that is made just for the Z. I purchased a Mallory mechanical advance distributor with a pertronix ignitor. This replaces the stock vacuum advance distributor.