WAS IN FLIGHT LOSS OF CONTROL FOR FAILURE OF THE PILOT-IN-COMMAND TO MAINTAIN VMC SHORTLY AFTER TAKEOFF. CONTRIBUTING TO THE ACCIDENT WAS PARTIAL LOSS OF ENGINE POWER FROM THE LEFT ENGINE DUE TO PARTIAL BLOCKAGE OF SEVERAL OF THE FUEL INJECTOR NOZZLES. ALSO CONTRIBUTING TO THE ACCIDENT WAS WEIGHT AND BALANCE EXCEEDED BY THE PILOT-IN-COMMAND AND INADEQUATE SURVEILLANCE BY THE COMPANY AND BY THE FAA.