The solid line from the tank is attached to the fuel pump with a short section of hose. Get an AC stamped filter from one of the repro houses and stick it inline there... You don't have to get under the car and the AC stamp lends itself to period correct. I don't think many will fault you for added fuel filtering even on a stock restoration...
[img]/ubbthreads/images/graemlins/
[/img]