About to order a n2o kit
hey herro, you and me are on the same boat buddy, I'm in the process of getting an NX wet kit to spray the same amount, you might want to consider a window switch as well, there is so much money that I don't have that I want to dump on my LS1 (sigh...)
Window switch, purge, bottle heater, rpm pills for the window switch, and an inline fuel pump for running 150 or higher. You can get away without using the fuel pump but you may regret it eventually if you run to lean.

