As nobody else is going to help you, I'll
just have to do it. Jasus, can't get good help these days for peanuts.
OK, techincal hat on again...
looking at the manifold from the front:
The connector on the top-left goes to the vacuume tube which runs up the left of the engine bay. It's a blue tube.
The connectors at the rear of the manifold, one left, one right:
Left goes to the small connector on the top of the tubes bringing the petrol to the injectors. Dunno it's use.
The other one goes to the small black box of magic (another black box of bo!!ix) located almost above the oil cap.
[/ end technical]
So now, as I am working from memory, I shall now proceed to go outside and look at the car for you to check the rest...
Bill is in the post. wink