Fuel filter location

How does a mechanical fuel pump work then if it doesn't PULL fuel from the tank?

Let me rephrase what I said.
It pulls from the tank,but there shouldnt be any restriction.
As far as I know,every chrysler car from our era, had the filter after the mech pump.They did it this way for a reason.

I have a hi-flow Carter mech fuel pump/Edelbrock carb on my car with absolutely no issues.