The Best NOS system is the pro fogger setup, I believe
...you could also go with their efi plate kit that goes between the upper and lower intakes... the dry kits are for beginners and don't hit quite as hard as a wet kit rated at the same h.p.
BUT...
You could always give Nitrous Express a try...
Their single nozzle efi kit is simple and rocks! They make some really good stuff, IMHO.
Run an MSD window switch w/ your nitrous system... for an added bit of security.