delay/misfire?

[Amadeous]

97 Gst,

my car was throwing a check engine light... took it in to get fixed because i couldnt figure it out. They told me they couldnt figure it out so i went to the internet to start searching. from what i could tell it was the IAC valve.. so i cleaned it and cleaned the throttle body while i was at it and i cleaned the MAF sensor.. check engine light is off and has stayed off but now it feels like there is a delay or probably a misfire. when i accelerate the car feels like its skipping a cylinder.. any suggestions? ( wasnt doing this before i cleaned everything)