Good thread! Never thought I would be interested in Nitrous but after seeing it being used a bit for strategy or "catch-up" in our local Super Pro bracket program I started giving it some thought. Recently picked up a "new" never installed Zex system with two bottles, it is for a dominator carb and tunable between 125 - 450 hp and also came with a new purge and bottle blow off kit, will be getting a bottle warmer kit to keep it at optimal pressure soon then put it all in. Best part is it all together was well under $500.