Help With Temperture Switch!!!!

[SWINGSAX68]

On a 307, where on the exhaust manifold does the temperture switch go to. There are outlets from the manifold to the front ram horn on the steering column side and on the manifold under back ram horn on the starter side. WHERE DOES THE SWITCH GO???? On my dads 305...it is on the column side....I think thats the switch...it looks like a little nail in a spark plug looking thingy. AANNDDDD..
1-What type of wire sould be used.....
2-how do you connect the wire to the switch????
3-what type of connector?????.
4-ALSO....where does the needle from the dash temp gauge need to be?? centered or reading cold??