gday,
i recently bout an eb and have noticed that there are three vacuum hoses floating around the engine bay on the passenger side two are green and one black i dont as yet have a workshop manual so yeh no idea where they go but im assuming they are meant to go into the junction block thingy mounted on the heater box?
thanks

Green should be attached to your heater tap.

The other two black ones I would imagine are the vac supply hose (should run across the back of the engine) and something else (pretty detailed explanation I know, but..........)