I've got the same hi-flowed ct26 on my supra at the moment.
It has the 54mm comp and 15 deg cut back on the exhaust turbine.
I haven't been able 10 run mine up to even 14psi yet cause the clutch just starts frying. It's putting out some serious ponies at 10psi. On 22psi it will be cranking out some big herbs! In the states they run them up to 28psi on 7mgte's. Any harder and your leaning on it too much.
On my website I've got compressor flow map for this exact turbo and if you look at it and understand compressor maps you'll see at 14psi its not even getting into the efficiency island so 22psi should put you right in there.
Is it a ct26 off a celica gt4 with twin entry or the higher flowing single entry? That will make a difference.