Were the injectors that you bought pop tested? Or did you just swap them in? If they are all out of balance, you might be having issues because they timing is way off (i.e., not all injectors popping at the same pressure).

I think the 0-60 for a well tuned 602 is more like 12-13 seconds, so you are close, but still a bit off. Do you feel the boost coming on? A 5 second difference can usually be attributed to lack of boost.

Have you read about the wastegate issues that the 602 can have due to electronics?

__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k