Large Water injected kit, need info

I am looking to add water injection to my new build. I want it for cooling only, i really wanting a kit that can keep up with tons of fuel. I plan on having it injected directly into the manifold. Any set ups that are proven? I am not going to inject through the elbow!

I have a big one here. It's 800-3000psi and puts out 1qt every 3.1 seconds with the big jets. What else did you need know?

Hypermax has a nice setup, high pressure too.