The following excerpt was taken from the advance summary sheets mailed to dealers in 66 and 67.
"For when your customer feels like putting his foot down! Cougar has got a heart of "GO" - just as it comes from the factory. But there are bound to be buyers who will get under the hood to sharpen Cougar's claws. To satisfy the needs of these high performance buffs, here are a number of performance equipment items designed especially for Cougar by Shelby American, Inc. We suggest you stock a supply of them so you can get your Cougar fans off to the races."
This is a working, used tachometer as seen listed in Shelby American literature, part #S7WK-17360-A. All three wires are uncut, there are no blems, no excuses! They were to be mounted on the transmission tunnel of non-console cars or attached to the bottom side of the dash pad for cars with a console. Supposedly there are at least 3 different mounting brackets used back in the day on these tachometers. This tachometer does not have an installation bracket. Recently calibrated and tested by renowned expert, Phil Severance, of Phidon Restorations.
Keep in mind we are always looking for Texaco gas station memorabilia for trades! At this point we are mostly looking for poor condition signs. Will consider good condition signs but are really after the "right" patina.
Faria, Rotunda Installation Instructions
Faria tachometers can be hooked up at the ignition switch. This method of installation eliminates the need for running additional wires to the engine.
1. Disconnect the wire at the ignition switch, which comes from the ignition coil.
2. Connect this wire to the red tachometer wire.
3. Connect the black wire to the back of the ignition switch. On some of the early Ford cars there maybe a black wire, which plugs into a pink wire that goes to the coil. If your car has this type of existing wiring, you may use it to connect to the tach.
4. Now all the ignition coil current will flow through the tachometer.
5. The blue wire is the light power wire. You can hook this up to any wire that has power when your lights are turned on. Be sure the tachometer case is grounded so that the light will operate.