Finding Fuel?

[5.0L_Of_Fury]

I recently purcheased a Nitrous Express kit from a friend its a 50-175 adjustable wet plate kit so heres my question whats the best way to tap into my fuel system? the guy I bought it from said he thinks NOS makes a line to go from the schreader valve to the selinoid but I cant find anyting? this in my mind would be the easiest and safest way to get fuel...any suggestions?

[speedytang]

All the kits include the adapter for the fuel rail but if you need one they are $7.95 at Jegs or Summit the last time I ordered one. Autometer is the manufacture that they sell.