Blower?

Nobodies given any input on the supercharger side of your question. About fix month's ago I had Vortech (V-2 SQ) supercharger put on my '00 GT. To date it has run great without any issues. Shocking increase in power. I chose Vortech because I never really heard any bad things about them, plus lots of stories from folks who've had them for years on their daily drivers without any issues. Also I was looking for more upper end hp, which a centrifugal sc will give versus a roots style, which give more torque. All I know is both hp on the upper end and torque on the lower end increased very noticable for me. I paid $3800 for the entire kit (blower, chip, K&N, injectors, fuel pump, etc, etc) and this included installation. I bought directly from the speedshop that installed it, and they saved me about $400 (cost of installation) over buying directly from Vortech. This model does not require an intercooler and I was told the shop was able to get me to 10 lbs of boost. The car now requires premium fuel and it has to be excellent quality premium or under certain rare circumstances it will detonate. My experience is Texaco is by far the best, car never detonates with it (Amoco seems the worst, car ALWAYS detonates, I know they're suppose to be the best, I am now convinced they have the best marketing department on the planet, because this is the second car I've had which hates Amoco and loves Texaco, anyways.....).

I too seem to be at the end of the road for upgrades which will get me significant upgrades in performance (unless anyone has an suggestions). My next mod will be an intercooler, but fully installed this will cost about $1600 and take me up to a max of about 15 lbs of boost without other significant motor upgrades. I've already dipped a little too far into the kids educations fund this year, this will happen next year. I have a feeling I'm going to need a new clutch in the not too far future, however mine currently seems to be doing OK (maybe a little slipage in 3rd gear under race conditions).

I've attached a pretty informative web page on supercharging which was very helpful when I was doing my pre-sale research. They are a bit Vortech biased, but this seems justified (IMO). Good luck! Any questions let me know.

http://www.motorsportsdigest.com/tech.htm