Dunno that much about drag racing, so you won't get any help from me there.
Aside from that, good to see you getting deeper and deeper into the 14s. Trap speed looks good enough for you to get a 14.6-14.7 sec run.
Honestly, unless the clutch was slipping on the 1-2-3-4 shifts, a new clutch won't help much.
Reason? You just pulled off a 2.22 60'. Unless you get some drag radials or slicks, I don't think you'll see any improvement there. Not to say you can't hit a 2.1 60', but it's unlikely.
In any case, practice makes perfect, so I expect you to have a 14.7 sec time slip next time you go.
-J
