Scott,
If you haven't already read my article on V8SHO.com, I'd suggest that you do for starters. It will shed some light on the issue and help to answer any questions you might have and disregard the note about this system not working on the Gen I/II cars (right Tom?!):
http://www.v8sho.com/SHO/nitrous.htm
Second, read Zex's information and installation guide which goes into depth about their system (Adobe .pdf format):
http://www.zex.com/support/Instructions/pdf/NitrousInstructions.pdf
The only problem I had with my system was a faulty connection where the nitrous system patches into the TPS. My fault for not making a good splice, and it was easily resolved. Tom uses the system and as he stated, so does Scott Waters. No problems with them to my knowledge either.
There are several considerations with nitrous. How often do you want to use it or should use it or what you want to use it for? Nitrous isn't for everyone for several reasons. Unlike a blower or other mods, nitrous is not continuous HP to the wheels every time you drive the car. It can be, but it would be expensive and you'd have to fill the bottle often. Personally, I wouldn't want that much HP through my drivetrain all the time. The car would eventually suffer increased wear and eventual breakage without additional support. Nitrous is great for the drag strip if that's where you're looking to make some power. If you're into Solo II (autocross) or other driving events (road courses) then nitrous wouldn't be too effective. In Solo II, you're not at WOT long enough for nitrous to make a huge difference... it's more about driving skill and handling than speed. On a road course, you'd use the bottle up too quick because you'd be at WOT alot longer than many runs at the drag strip.
Some folks think of nitrous as "cheating" and not making real HP. It's leagal at the strip, so it's not cheating. You'll have ********* "all-motor" fans and then you'll have nitrous fans; and they'll always be ******** back and forth like Chevy -vs- Ford owners. Some folks want more power all the time; for them, nitrous is not the answer. I use it only at the strip, the dyno, and for testing purposes. I'm relatively happy with the performance of the car as a daily driver... I just wanted a little extra something for the dragstrip.
With light mods and nitrous, the following cars could get etched into your **** list: SVT Cobra, SVT Lightning, and a variety of lightly modded Camaro's, Firebirds, and even some Corvettes. Scott managed a blistering 13.8 @ 102 mph as his best times. Of course, he had drag slicks, the good udp, exhaust dump, and 100 HP jetting as well. I would've loved to see that thing on the dyno. My best a while ago was a 14.3 @ 96 mph. That was on the old motor though and I've yet to get back to the strip.
So, what it comes down to, is what you want to do with your car. If you enjoy drag racing the SHO, then nitrous is an inexpensive, safe, and fun way to tear up the track. If not, then nitrous may not be you're cup of tea.
One thing I'd suggest, is that after installation with the lowest jets, test the car on a dyno so you can fine tune it's performance safely.
If you have any other questions, just drop me a line wink
