Is there any way to adjust the idle?

Tonight as I was driving home through an area with a tight right turn followed by a left then a stopsign.. I slid through almost all of it in 2nd (it's short) and hit the brake and clutch to make the stopsign.. I probably came down from around 4k in second and I looked at the tach when I was almost at a stop and the rpms were down at about 200 or so.. then they went back up almost immediately..

Is there any way to either raise the idle, or make the idle more sensative? This has happened before, when you drive hard then come to a stop quick.. it could have been the alternator's fault, so maybe a udp would help this...

just curious...

(oh yeah and I'm finally not a newbie anymore)

I'm off to watch the Matrix and have a Mike's Hard lem.