||In your dyno post, you mentioned that 2 of your injectors had already failed and you still had 4 of the originals left.
Did the replacements have the same color dots? If not, then they're no matched and you could be really lean or rich on some cylinders.
Also, injectors tend to fail together which is why it's good to replace all six one the first one goes. The source of your problem might be a failing injector or injectors.