I have a Zex Dry nitrous kit. System comes with bottle, lines, progressive controller, purge valve, bottle heater, arming switch, jets from 55-105 shots. I got this kit off of Gerry, minus the heater which i added. This kit is safe for any stock motor if you've got a way to pull timing out. Comes with instructions and the tap to install the nozzle into your intake. This is a dry kit and is ideal for a return style fuel system. If you have questions about installing or making it work just ask.
I'm about to buy a supercharger so i won't be needed this, hoping to use the money to fund a couple more items i need for the blower setup. I'm thinking $320 shipped, but make me an offer and i'm sure we can make a deal.