you have three options
get it tuned not just f/p and timing have a chip burned as its to fat at idle
or if you are cheep and just want to band aid it
either buy this http://k-mansparts.com/items/perform...39a-detail.htm

or if you are really cheep, pull the idle air by pass valve off and grind a slot between the two holes. if you go this route do it gradually only removing a little at a time as too much and the car wont idle.