Vacuum tubes

Here are the vacuum tubes that I to work on. They are left over from the Weber conversion

1. On the EGR valve - this one needs to be blocked.

2. Coming out of the front of engine block - this one should be routed to the air filter or just left open - perhaps with a make shift filter on it.

3. From the vacuum recovery tank at the back of the engine bay - this one is the de-smogger and should not be blocked - I think I can leave it open.

2 & 3 were connected to the old ZS carb.

Thanks to folks on mgexperience.net for help - here is the post that helped me.

http://www.mgexperience.net/phorum/read.php?1,577859