as far as i know, there isn't an "advertised" 1/4 mile time. just an advertised 0-60 time of something like 4.7 seconds. 13.9 sounds on point with other late model WRXs stock 1/4 mile times.
I've never personally been to atco, but from what I've heard, its a pretty crummy track, and its commonly referred to as "slow atco". your opinion?