A ct26 will handle 14-15PSI without any problems draza - thats what mine runs on high boost ( when its not in current limp mode )with the standard ecu. Anything above this and the stock air to air setup begins to become inefficient.
im guessing you have a boost controller in ? If not thats your first step , if your using an st185 ECU to control your motor - the mapping is there
Secondly maybe look at the 13v fuel pump mod so it doesnt stagger with fuel starve too until you can upgrade your ECU/fuelpump/injectors etc to cope with moter power .