Buy a "Fuel Injection" filter that has inverted-flare fittings at both ends that are the size of your pump-to-carb fuel tube. 5/16, more likely 3/8.
Cut the OEM steel tube between pump and carb, add flare nuts, double-flare the ends. Install fuel filter using the double-flared/flare nut attachments.
The only problem is that most OEM tubes aren't routed in a way that provides room for the bulky filter. You might have to bend your own tube, or partial section of tube, to get it to route cleanly. Make sure the filter is in a place you can access for service later.
The "Fuel Injection" filter will easily withstand any pressure a carb application would have; the double-flare connections are completely secure, and it's all on the pressure side of the pump, so no pump-suction problems.
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