Not enough pressure?

I have a 93 chevy fullsize, In the front suspension I have 3" top bag cups, 2600 contitech bags, and Kustomwerks lower tubular control arms. I have a suicide doors eng driven comressor with a 110-145 psi pressure switch. The problem is is that the front wont raise up high enough, do I need more pressure? or do I need lower bag cups? What do yall think it is?