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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Your not up on aussie slang, eh?
House bricks is a slang term for large particles....particles that usually get filtered out in a proper filter.....the sock in the tank isn't a proper filter.

As for fuel filters restricting flow......try blowing through a new one......no restriction.
When a fuel filter is restricting flow, it's because it is ready to be changed out.