From my understanding the moose will lose you power when it's there.
Try to see if you have the bog at the same time it's moosing.
My suggestion is to replace the IAC with the one your cleaning then try again.
Do the fuel filter anyway as it's a cheap part.
1996 2.5LT V6 Contour ATX
My Tour+help/info pics
E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.