Had injectors rebuilt and the engine runs worse? What's goin on!?

[dieseldan44]

Had my injectors rebuilt at a reputable Bosch shop nearby in Worcester. Purchased NOS Bosch France nozzles from a forum member and had them installed to cure my nailing problem. Car has 200k miles and the injectors are original, so I figured what the heck.

Re installed and the car runs worse.
- misses on startup a few times (didn't before)
- smokes more at idle
- idles worse
- accelerates worse

Ran the car hard for a 100 miles on the highway with no improvement.

What the heck could be going on?

Didn't change anything else on the engine except the heat shields.

Thanks much in advance,
dd

PS Im having the worst luck with this thing!