Originally Posted by babymog

Yes, it matters. The Alda line has to blow out the vent in the top when powered, the manifold shouldn't.

The manifold to lower is how my car is plumbed, I just looked, but it might be wrong (works though). Whichever one blows out the top/vent when you apply 12v to the solenoid is the one to the Alda.

There is a picture here somewhere.

here it is:

http://www.peachparts.com/shopforum/showthread.php?t=183791&highlight=alda

Shows the manifold line on the bottom also.