I'm just about ready to route the wires now. I mounted everything under the dash, MSD box included. I wanted everything under there neat and easily serviceable. I hate to look under a dash and see a rats nest of wires. I'm going to do everything I can to make this all neat and organized. To that end I had Nick Acton fabricate a mount for the MSD box. Once I mounted that I realized that I had a large number of auxiliary boxes, relays, etc... to mount. I figured the easiest and neatest way to do it was to fabricate for myself (Ugh, I'm a TERRIBLE fabricator, but it came out functionally fine, cosmetically OK) a mount similar to what Nick made for the MSD box. I had a few scraps of aluminum laying around, and what you see is the result. Like the MSD mount, it is mounted on stainless studs that will be hidden behind the aluminum firewall on the engine side. The screws come in from the engine side of the firewall inward. They're flat head stainless screws with the beveled backside of the head, I drilled and countersunk them into the fiberglass on the engine side of the firewall, and then added flat and lock washers before nutting them tightly against the firewall to hole everything in place. Then I mounted the aluminum plates over the tops of the nuts, and then tightened everything down with lock nuts. It all looks nice and neat and organized, and everything is easily removable for servicing if the need arises in the future.
From left to right on the relay/flasher/converter box panel are: Hazard flasher, horn relay, turn signal flasher, pusher fan relay, pusher fan relay, main puller fan relay, and the converter box for using a three wire VW turn signal switch in a six wire system. Next to that is the Ron Francis Retro Series fuse block, and of course the MSD ignition control box. You can see the large holes cut into the fiberglass firewall. The aluminum on the engine side of the firewall, once installed, will cover these holes and the grommets will be set into the aluminum panel, and the grommets will then sit centered within the larger holes in the fiberglass. That's it for now, more to come in the next few days.