The pipe coming from the top of the rocker cover is the engine breather, and you need to get that sorted as your mixture will get very lean. As for the power steering, check the condition of the power steering pump drive belt and make sure it is not loose. Also, have a peek at the power steering fluid level. It could be low.
the brakes, well look at the brake servo connection hose. That will connect either into the induction system of the injector, or the inlet manifold. (Can't remember which) Make sure it is connected.