Looking at getting a lil hapy gas for the Firebird...only a 100 shot....I'veheard nothing but good things about NX so I know what brand, but not which kit. I have been looking at the Mainline ( ML2000) and 20920( GM EFI). Ill try to find the part number if my internet will stop acting up. Also which RPM window switch is a good one? I see Summit has their brand, MSD, Nos, NX....and others.....

nobody?

Any of the kits will work well for what you are wanting to do. There isn't much difference between them at the HP levels you are talking about.

I would use an FJO controller as the window switch. It will do a bunch of things for you-

It will act as the window switch
It will monitor TPS and activate the N20 system at WOT without a mechanical switch mounted on the linkage or pedal
It's main function is progressive control. It will allow you to bring the nitrous on gradually to prevent blowing the tires off. You don't have to use the progressive feature, but it's a pretty nice benefit.

www.fjoracing.com