More fuel system questions

So putting together the new system to feed the 5.9

I wanted to reuse the edelbrock chrome fuel line and aluminum filter that I already had on the car when it was a 318.

I'll be using a new 3/8" tank pick up, then a filter of some type(haven't purchased that yet), then the carter fuel pump, and 3/8" hard line to the engine bay. I've installed my Holley fuel pressure regulator where I want it. This is a deadhead, no-return style.
The instructions with the regulator show putting a fuel filter before the regulator.

So my question, can I use the edelbrock filter in a vertical position coming into the bottom of the regulator? Or should I just put the filter after the regulator. I have pics attached of the filter in both locations below. I of course would like to figure this out before I cut my hose.

Your thoughts ? Before, after, etc, will that filter work in an upright position?

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