ATTN: Hammer-Roush cold air kit

[BLK99GT]

It never had this before I put on the kit.It only does it when I'm in gear but not on the gas ,like at a red light.And only after its been running a while.It dosnt do it when it first starts,thats 750RPM .I took out the passenger side fog light too to get more air but it didnt help.Any ideas at all?

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1999 GT AODE ,MAC cold air kit,ATS-III seq. turn signals