i've only been able to run windshield fluid through it since its been too cold since the install. I'm not sure how much methanol it can handle yet so trying not to put too much through it. I doubt you'd have a problem running the bigger nozzle with just water in it
I've been running a 10 gph nozzle but have the progressive controller set up so it should only hit around 8 max. Im still figuring out what the right amount is still. I don't have an inter cooler and i haven't hit 1200 yet on wot