[rotrex]

Ok, usually you do not spray at all unless you apply significant boost.
There is little benefit spraying at say 0-10PSI cruising along except making your methanol supplier happy.
At this high boost level you really can take advantage of water injection. 4x 0.3mm nozzles flow some 300ml/min at 10 bar. (pls check the number form current charts, this is form memory). Rule of thump is 1.5ml/HP. So this would about fit.
As with 22PSI you'll push the OEM TC really hard. In this case the engine might benefit from pre compression injection.
What are your current IATs after the FMIC?

If you can freely tune ignition timing and your current tune is knock limited by high intake air temperatures, you could push things further by injecting more water meth than those 300ml/min.