I've searched a bit but haven't found too much related to this exactly. My jeep will occasionally drop down to 400-500rpms when pulling up to a stop sign/light. It rarely stalls (happened twice over the past month) but I was thinking its some kind of IAC issue. I cleaned it out (was still pretty clean because I bored it out a little while ago) so that doesnt seem to be the issue. The O-ring is still there, I've got it tightened up pretty good too. This problem was evident before the bored throttle body when I had my stock one. The only other thing (other than the motor itself) would be that one of my 4 bolts connecting it to the intake manifold is stripping out. I figured that between the gasket and the 3 other bolts torqued to spec that it wouldnt have any problems sealing. Any ideas? I don't feel like buying a new one but if anyone's got any ideas they are appreciated.