Don't take this the wrong way, but you need to save your $200 and use it to get to the track a few more times. That 2.3 60' says you were either spinning or bogging. Get that 60' down to a 2.0- 2.1 and you will see mid-low 14s.
Running a good ET takes practice, plain and simple. Trust me, if you simply keep going back every chance you get, you will knock off considerable ET with each trip.
2016 2.7 turbo F-150
2004 Mach 1, X-pipe, KN Filter.