oil leak help

A friend ,did a number matching 340 (1973 vintage) Challenger. Oil whizzed past the filter seal, is that what you are seeing? Takes two ,to this.Watch the filter,watch how the oil flows. F el Pro ,complete small block gasket kit,in this case. They sent all oil plate gasket possibilities, in their "engine gasket kit" The first one leaked, like you describe. The fatter thicker plate gasket ( in the engine gasket kit..) , and careful installation ,solved his problem. Mopar S.B., isn't a 350 Chevy, .It needs specific attention... My personal experience...