Need More Lift!

I have a set of Air Ride Tech A-Arms on my 98 Sonoma using 2600 Firestones and SuicideDoors upper cups. The truck has a traditional body drop on 20's and is not getting enough lift to turn. It is really close but at full lift it needs a couple more inches. Any ideas?? Bigger upper cups?
 
Thanks!

is the bag all the way deflated when layed out? if not your losing potential lift there... are the arms balljoints super close to binding out when layed out? if not your probly losing some potential lift there as well

First thing I would check is to see if the bag is all the way colapsed. If its not you need taller cups since the bag mounts to the lower arm.

I had the same problem with the ART kit on my Ram.  If you swap the bags out for Slams or the new Dominators, whichever you prefer (I used Slams) you'll increase the lift.  I got an extra 3.5" of lift on my truck.

 Check the bag, if that is not the problem then switch the bags...