Hi Karen. OK, decide what wires need to go to and from the ignition switch. Of course, you'll need a battery hot, from the fuse panel, should be "Ignition switch Power", "ignition switch Accessory", and "Coil". My switch just has 2 positions, off, and on. Power goes to one side, and everything else goes to the other. If you have 3 positions, off in the center, and accessory to left, and 'on' to the right, then you put the power to the center, and with a meter, determine which terminal becomes live with switch in 'On' position only, and that's where the 'coil' wire goes. Accessory goes to the other terminal, (that one should be live in 'On', or 'Accessory' position. Hope this helps a little. Let me know if you need more. In the ez wire fuse panel, the accessory wire from the switch goes back and energizes all the 'accessories', like radio, wipers, Heater/Air Cond., and stuff like that. 'On' position does all that, and adds ignition power.
To ease the crowding in the main firewall grommet, I separated some of the engine wiring and passed it through the formerly used temperature/oil pressure opening. I put wiring for the new electric temperature, oil pressure, coil wire, and Battery Hot, and tachometer through that grommet, as those wires all ran to the engine easier that way.
