MaxKrawler

i was wondering if anyone has installed a NOS nitrous system on a 2000 maxima. if so, where does the fuel hose connect to in the engine. I've found a cap that says fuel test port, 1psi max or something like that. I think thats the fuel port i'm supposed to connect it to but i was told i needed to replace the port with a t-valve which will allow me a connection to the fuel hose. Anyone know where to get it? There appears to be thread on the port but my hose doesn't fit, probly be easier to just buy a new hose to fit the connection. Anyone know what AN that will fit? Any additional info would be greatly appreciated, thanx