Mike, I haven't even done underneath the car yet - but most wires will be in a raceway inside of the car. I still have my trans cover off, though about ready soon to install. The only under car wires are the speedo sender(3), brake switch(2) and trans temp sender(1). These will enter the car under the drivers seat through a grommeted hole in the floorboards. Even the starter solenoid wires will be in a conduit and on top of the floorboards.

Don, it sounds like you have the same or similar module as I have. All of my wiring will be hidden except the engine compartment/front end. With an Ford motor in an early Ford roadster, hiding wires back to the module is a challenge as there really are no easily available places with a boxed frame and the engine wires at its' front. These wires will go in some sort of a loom or conduit: headlights 2 + 1 ground, MSD 3, fan 1+1 ground, fan sender 1, water temp 1, oil press 1, a/c comp 1.

Regardless of my whine, it is a fun part of the project