I didn’t really think that the orientation mattered honestly, I mainly did it this way because I wanted my fuel line tucked against the firewall and wanted to retain the stock throttle cable for time being which was routed the same way it is now, around the front of the engine to the passenger side.
Looking at pictures of the throat of the intake it doesn’t really seem like it’s important which way it goes, front to back it looks symmetrical. I think if I for some reason mounted it sideways it would be a different story.