where is the iac

i have done some searching and found that my idle surging is probably my iac but i dont kno where it is and how to take it off

What year?

For the early 90's T-Birds it is bolted directly to the throttle body by two bolts and is shaped like a small cylinder about 6" long and 1" in diameter. A Black plug plugs into the end

The 5.0 looks a little different, but for the most part the IAC is similar.

sry, its a 95 4.6

Mounted on the intake manifold..Looks kike this:

http://i24.photobucket.com/albums/c17/corning_d3/IACthunderbird.gif