the areas you are referring to are under carburetor so unless someone takes carburetor off,its not possible to show you the exact connections of vacuum pipes.if its easy for you,i live in rawalpindi,qasim market side to be more precise.if you can manage,we can meet up and i can connect the pipes for you.
and about mileage,what you got is ok-ish.khyber is capable to deliver 10-12 kmpl in local with light foot..but your mileage might get better once all your vacuum pipes are hooked because right now,you car is getting air from those openings which can distort settings of carburetor.