the problem is that a 67
stang underdash wiring loom is specific to engine, if the car has a tach, and if it has foglamps. a new loom costs about $500

. I sugest getting a 67 wiring scematic and taking a real good look at it to try to figure out the best way to hook it up. if you can't, or do not feel compfortible, please take it to the best electrical shop in town. one idea that I have always wanted to do to a 67 is to make the foglamps the parking lamps and run brake ducts through the factory parking lamp holes! (ok, I love to push cars to the limit

)