OK, done some tests with fuel injector:
Injector is off 3.0L Turbo supra / V-shape (440cc).
Result is disappointing. Atomization at 140PSI is poor as you can see on the picture. It is more like jet spray rather than mist (comparing to previous agricultural nozzle).
Now I need some professional input from tuners here, do all injectors have that bad atomization?