So whaat would you do?

I have an 2001 GSR, with i/e/h/im. On friday i will get paid a few hundred dollars(300) that will get put directly in to the ride. Heres your choice, either a highflowcat, a throttlebody(which i might need a little more cash for), or a ZEX dry kit which is used off of my buddys old integra for 300. He said i can pay him later for the purdge kit. i just dont know what to do, i mean i want to spray really bad, and have a quick ass car. Or i can wait a bit and build up slowly. I have been thining about this for a while now and just cant think straight, so thats why i'm here. Please let me know what u guys think help me decide.

thanks a million