The IAT sensor is plumbed at the back of the intake where the stock MAP sensor was located. The nitrous is the intercooler! I do quite a few tunes for 10.5 and L/S cars and I've been using nitrous as an intercooler for a while now.

It makes 445hp and 490tq without the nitrous. That is on a cool day. For hot weather, the timing is pulled even more aggressively for higher IAT's. It's been on the 445hp 490tq non intercooled setup for nearly two years now. The nitrous was just added last week.