Cork sucks period. Lots of ultra black/grey on the front and rear of the intake. And pull it down even. You will ahve to go over the bolt squences 3-4 times before they all finally tighten down.
There is a write up on the corral on how to set the idle, its pretty much unplug the IAB, start the motor, adjust the idle screw till its idling about 500 rpms, then plug it in, then re-adjust your TPS.
Where do you live anyway?