Runnin Wrong

hey guys..got a gsr hatch .it's runnin real rich and isn't pullin the same. it seems like my air 2 fuel ratio is messed up...i a vtec controller but never messed with it...i can feel it...its not pullin as hard as it used to and isn't as loud...jus wonderin if anyone had the same problem and/or if anyone can suggest anything.

is your vtec working?

yeah..its working...

if it was running properly before what did you change to have it run like it does now?

do a compression check