something is wrong. Where were you shifting. The best stock time people have posted is 14.1. My person time was 14.3@94.X with a 2.0 60' time. I obviously didn't know how to launch then. People have run 13's with just exhaust. I ran consistant 13.8@96-97mph with just mbc (1.8 60').
Your 60' is decent, the only thing I can think of is you are shifting too soon. Your mph is way low.