High Idle/rev issue...

Hi,
I recently had my spark plugs regapped, replaced the fuel filter, cleaned the throttle plate and set to specs and had the feul injectors cleaned as well as a normal oil change...and since then (about 35 miles) have noticed that the car idles high (1000-1200 rpms) and the revs remain high as I pull up to a stop (ex. a stop light). The revs will remain as high as almost 2000 rpms before coming down to about 1000rpms, which usually happens right when I coast to a stop.

I was wondering if it takes the cpu some time/miles to "learn" the new fuel flow due to the filter (it was very dirty) being cleaned or if I have to have the idle adjusted somehow?

This is on a supercharged 2000 GT.

Thanks for any replies.

Mike