On the right there are 3. 2 white and 1 black. I am assuming the black one goes to the throttle position sensor below the throttle body. There are then 2 white left; 1 is marked with the number '1' and one is marked with the number '7'. Which one goes to the knock sensor and were does the other go?

Also, on the inlet beneath the air temp sensor there is an outlet for a pipe....is this for the breather system?