I've got a dry setup with either a 40 50 or 60 shot jet. I haven't used it since I put the blower on since the SC has caused a ton of heat related problems. I did use it for about a year before the blower went on though. Mine is the NOS brand kit 05122. It works really well but if you're looking to run any more than a 60 shot I'd really suggest to look into a wet kit. Each type has got it's advantages & disadvantages.
dry - cheap, easy to install, easy to use, doesn't distribute evenly between the cylinders, doesn't add enough fuel to support a large "shot"
wet - costs just a little more, a little tougher to install, easy to use, distributes nitrous more evenly, adds planty of fuel to keep things running smooth, more reliable than a dry kit
direct port - best reliability & most efficient kit, costs over twice as much as the other kits, considerably tougher to install, distributes fuel and nitrous perfectly, can add enough fuel to run lots of nitrous, can be dangerous since a lot of people get too confident with these kits & run too much juice.
Whatever way you decide to go I would suggest to do a lot of homework on it first. There's lots of options & lots of things that you should do to keep things running reliably. The more you know about what you're doing the less of a chance you'll blow up your motor.
Yeah I know that was more info than you asked for but I thought it might be helpful
Till L8er,
Ken