here's the water injection sight

Aquamist Water Injection

As for a boosted h22, i tried to run one a while ago and he didn't want to, it was a 5gen turbo, i think it would be a good race

oh yeah, i lowered the compression because you can up the boost more reliable with lower compression, if i didn't put to thicker headgasket, i would have to keep boost below 8psi