"wreak" of fuel if there isn't a leak somewhere. Did you seal the injectors properly? might be leaking from the o-rings if you pinched them or something. Did you lube them when installing? Is it just an idle problem you are having? Test the IACV
For those who don't know or are confused, there are two AMS companies: AMS Canada (The AMS that everyone here hates on for copying parts and questionable business ethics) and AMS USA (A company who makes legitimate performance parts for most notably the EVO and GTR)