Fuel Injectors as Water/Meth Injectors

[unior]

Hi,

I'm looking to design a water injection kit using a high pressure fuel pump, some top feed fuel injectors with an rx7 lower fuel rail. My only question is how much flow do i need. I see some people using nozzles rated at 6 - 8 lbs per min for their injection systems. But about the smallest injectors i have lying around are 19 lbs. Will this be too much? If so I will need a way to adjust injector duty cycle...which i think is very doable.

BTW I am building this system for a turbocharged 4g63 2.0 liter running 20-23psi of boost on pump gas and would like to run 50/50 water meth.

TIA!