If you're boosting, the eddy intake combo from modular head shop might be your best bet.
You'll sacrifice a little bottom end but once the turbo spools up it won't matter any more.
Cushman turbo cams would be would be nasty in it.
Don't forget to upgrade your valves and springs!
2003 GT: JLT CAI, summit 75mm TB, C&L plenum, 24# injectors, Mac Prochamber, SLP LM1 cat back, 3.73 Gears, FR500 Diff, FR500 diff cover, Jmod trans and shift kit, Max Motorsports subframes, Koni oranges front and rear, DBA discs front and rear, shrader performance rear seat delete, APSX D2 wideband, MPT happy customer.