This one has me stumped. The other night I was out giving an old friend a ride in the Cobra and the manual override
fan switch would not operate the fans. When I got home the thermostat switch brought them both up for a moment, so I knew the fans were operational. I also recently replaced the fan switch and I'm 100% certain that is fine (please read further).
I crawled my 6'3" frame under the dash to check the other connections from the fan switch to the main and I noticed that the fat red wire leading from the switch was hanging in thin air. The other two red wires that come from the other plug on the switch are spliced into the main harness just underneath the passenger side of the dash. So I ran a jumper from this fat red wire straight to the battery and, wouldn't you know, the fans started whirring.
So, I look and I look and I look and
I can't figure out for the life of me where this hot lead plugs into on my Superformance! 
The other peculiar thing about the connector on the end of this fat wire is that it is a
male connector with a shroud, not the typical female connector one would expect.
While I was under there I also noticed that both the fuse block and another plate that holds some relays had worked themselves loose from the backside of the dash plate (double stick tape had been used prior). So I affixed some industrial strength velcro to them and now I can easily remove them for servicing in the future.
Any SPF owners that can help me with finding the hot lead to plug in the fan switch would be greatly appreciated!
-Deano