That 14" is like 8" of lift, if our normal calculations (6" at the rear stock) hold true. And 2" over what Shamu's running with his 4.5's. That's unusual even for brand new springs. High even for 5.5" springs.
What is the number stenciled on the top leaf?
What is the front measurement?
Have you driven it much? How many miles and have you driven it hard or bounced around off-road yet?
I'm not suggesting that doing that will settle the springs several inches by any means (any springs for that matter), but it's good info to know in case we find some common denominator.
Couple other questions for you, to start things off before you call the shop.
1. Are the double-wrap eyes at the front? (this won't normally effect the height. Just curious)
2. If using stock shackles, are the open ends facing rearward?
3. Did you wait until the full weight was on the ground before you tightened the bolts?
4. Are you using the original hardware or new, and what did you tighten the bolts down to?
5. What is the difference (roughly) between the front and rear, as measured at the body line?
Yes, you can take leaves out, as you may have been told originally too, but it'd take too many leaves to get you down to a more normal level from where you are I'm thinking.
Sorry about the hassle, but we should be able to determine something at least.
Nose bleeds are no fun!
Paul