Fuel Filters

krazykuda said

Putting a fuel filter before the fuel pump restricts the fuel feed as it is gravity fed. It's best to put the filter after the pump, before the carb.

If the 'sock' in the tank on the fuel sending unit is in good shape, it will not let "house bricks" through.

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The fuel pump isn't just gravity fed. It pulls/sucks the fuel so long is the line isn't collapsed or otherwise restricted and the tank is properly vented.
The pick up screen in the tank isn't any different from those found in todays in tank electric pump applications. When a tiny object has razor sharp edges, the filter elements will only slow it down.
Every foreign object found caught in those fuel injectors returned to the mfgr, when magnified, looked like tiny swords.