The AMAL valve should be divert air from the compressor to the actuator when unplugged or switched off. When it is switched on, it will divert air to the air box.
This is what i'm unsure of - people put them on a swich, so they are on permanently, as in a 2 stage boost mod. From what you are saying, when it's on it diverts air to the box - so that means the actuator won't see any.....