The oil appears above the head gasket. Why would it flow up then inboard to collect around the injectors? Pull the crossover pipe to see if there's enough wet oil to leak past the intake manifold gasket. I've reused the crossover pipe gasket more times than I can count. Have a rag to catch it so it doesn't slip between the block and IP where you'll lose it for good. A light coat of RTV will keep oil from leaking past that junction.

Sixto
87 300D