there are plenty of superchargers for you car. from the sounds of it, you have an m50. aa makes a kit for you with a c30 rotex supercharger. put you around 240whp with some other bolt one. maybe give or take a few ponies. a supercharger will cost you around 4k almost new. buy used! everyone is selling there setups it seems for turbo/twinscrew!
you can find them used for 2.5k or sometimes less. just look. i say with 4 k you sit on it till you get a few more buck to go turbo.
