First actuall problem!!
 

my car stalled at a stop sign today...and now everytime that i stop..i see my Tach go below 500 rpm and jump bak up....wats the problem?

Could be a few different things, but in this case, I would start with cleaning the IAC. Do you have a stock TB?

yea...i have the stock tb/plenum....only mods to the engine are the SLP LM I's and the K&N Drop in filter

ill get some carb cleaner tommorow and clean the iac....but first...can someone show me where that is??? hahaha

also..should i clean my MAF while im at it?

I believe it screws in right after the air filter (IAC), do you have the air silencer removed? A lot of times thats whats makes it dirty, i know mine is the same way! Hope you fix it.

my car does the same thing when i come to a stop

the IAC is connected to the plenum. its right next to those little red hoses. clean your MAF while your at it too.

The IAC is a shiny metal thing that is right on the front of your intake plenum. Those screws are a pain in the ass to get out...lol.

This may not be your problem, but I had similar issues with my 2005 GT, so I figured I'd pipe in, just so you have as much info as possible. When I would stop, my car would feel like it was just about to stall out, but then "catch" itself. It was a lot more noticable if I had the brakes applied. Also, when I would be crusing at highway speeds, (55-70ish) and I would accelrate (still being in 5th gear) it felt like I had no power at all. I'd have to drop to 4th, sometimes 3rd gear to get any power. Finally, after about 2 weeks of this, my Check Engine light came on. The report back from the dealer was, that I had two bad spark plugs and an ignition coil.

That should do the trick.
 

Had the same problem not too long ago. Replaced the IAC and it's good to go.

i filled up on gas today and it hasnt done it since...i think i had a bad batch of gas and/or water in my tank....but its gone for now...thanx for all the input