nice build! so you're saying that the car has the ITM and header but no tune? Mine leaned out hardcore before the tune and was not safe to WOT. When you get Tom's tune, just make sure he turns off EGR and EVAP and whatnot and you can remove most everything. Look at the pictures of my engine for reference, I have only the fuel pressure regulator and brake booster vacuum lines hooked up, the rest are plugged!
Disciple of the "Push harder, suck less" school of autocross.