Adding Water Injection to an Old Ford 7.3 Which nozzles?

[smallcarguy]

Hello all.

I am considering adding water injection to my 92 Ford 7.3L IDI diesel. I have already turbo charged it and it normally sees 10psi of boost. I would like the water to come on at about 5-7 PSI.

I would like to construct my own homemade system and am having trouble finding appropriate nozzles.

Where should I get the nozzles?
What sizes should I try?