well damn.... i've only seen a couple run, one of them was an 06 up at commerce... he couldnt get traction in 1st or 2nd all day long, so i think his best time was about a 13.7 or 13.8... then there was one at sdr last time i went down there who i believe was doing about 13.3's and 13.2's consistantly... so i dunno... i think he was stock too.... still not bad for 3700 lbs!