Ok, here is the diagram for MY setup. You may have to tailor to suit your needs:

And here is a basic simplifed version for those desiring to use a canistor style coil. I want to reaffirm one detail. If you use a .5 ohm canistor coil, to keep from cooking the coil you MUST use a ballast resistor. If you use the late model coil from a "lean burn" system you don't need the ballast. Some have gotten away with not using the ballast on the .5 ohm coils, but it is NOT advisable! Ask me how I know!