Its going to take much more work and money on a blower setup to hit 350whp.

Were talking - Gen V, S2IC, Ported heads, big cam blah blah blah.

Go right for the turbo kit. Everything you need comes with a the Turbo kit. Put it on, get it tuned and enjoy your 350whp with much less of headache and a fuller wallet.

Take a gander:
Turbo Parts & Kits