Since you like domestics, there is another option. If you are willing to go older, a Focus (standard) or SVT. I have a 2002 ZX5 and just bought a used PowerWorks supercharger for it. I expect a solid 230-250 HP when I am done, for an expenditure of around $2k (plus LSD and clutch). 250 HP in a 2700 lb car is fairly exciting. No qualms about reliability either, parts are cheap, etc, etc.