Adjust them out, just a little at a time, to close the throttle blades, it doesnt take much to make a big difference, and adjust the front and rear screws as evenly as you can. When you adjust the screws out and close the throttle blades, this causes it to have to open the IAC more, to give it more air, to get back to the target idle speed, which increase the IAC steps. Do the adjusting with it running, and remember to key the car off for 30 seconds after you adjust each time, this will make sure to reset the TPS back to zero. Let me know if you have any other questions...
Brian