This was posted by "5.0GTCONV" over on the StangNet board..
Here's the thread if you want to take a look...
http://forums.stangnet.com/showthread.php?threadid=205330
Originally posted by 5.0GTCONV
Well I got a tip from a great guy here on this forum. He said that Kenne Bell might come out with a replacement bolt on s/c for the new Cobra! Well I called and talked to a tech and sure enough it's coming outin January 2003. He said the boost options are 6-20 lbs psi and priced at $3,000. He said you could also add about a 125 shot of NOS on it. He recomended the NOS kit. So I called NOS and talked to one of thier techs. He said that the 5115 kit would work. It's a mustang 5.0 dry kit, but the newer 4.6 dry kit would work as well. I think that # was 5116. These same options are available for the SVT Lightning. That s/c is coming out on september 21st b/c the had some problems w/ it before so they are fine tuning it. The NOS kit is any where b/t $450-$800 depending on the kit. They both guestimated over 550rwhp with the s/c and some where in the high 600's or low 700's, depending on how much nitrous you run, how much boost, the timing retard, and how rich it is. They both recomended subframe connectors and to run the nitrous a gradual contoler so you don't put too much stress on the engine at one time. Also the NOS tech confirmed better response from the s/c b/c of the cooling effect from the nitrous. I don't know if I'd want that much power, but that sounds like a pretty cool set up, right?
Here's the thread if you want to take a look...
http://forums.stangnet.com/showthread.php?threadid=205330