I just did a motor swap and my GSR engine is at 1000 RPM at idle. I did a vacuum test and the result shows no leak. Took out the IAC valve and cleaned it. Went through the entire procedure from the HELMS that show you how to readjust the idle but still cannot bring it down. Basically I have tighten the idle control screw on the throttle body all the way as well as loosen the throttle cable but still staying at 1000. Other than that the car runs fine with the exception of the high idling. If anyone have something that I left out the picture please let me know. Thanks...