1928-1931 Ford Model A & AA Gas Filters and Fuel Strainers Ford Model A & AA Fuel filters and Ford Model A & AA strainers are an integral part of your antique Ford fuel system. They keep all of the debris out of your carburetor and engine block, and help with the overall flow of fuel in your Model A. Model A Ford Garage ~ Fuel Tank Filter Set-up Model A Ford Garage Fuel Tank Filter Set-up Photo courtesy of Timothy Kelly. Timothy Kelly recently posted this great idea on fordbarn about how he sets up a Model A fuel tank filter to assist in cleaning out a dirty tank without removing the tank. Thanks for his permission to post it here, too!