Where did the injectors come from/who rebuilt them?
I would demand a refund at the very least. There is no way the open injector feed lines could run fuel out in any appreciable quantity unless the engine was cranked with the injectors absent.
Sounds like you are overfueling like a b!tch.
One other remote possibility (others will know more than I) is a lift pump problem that might allow fuel to enter the crankcase. I simply don't know about this.

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1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".