Best Fuel Filter ?? | The H.A.M.B. - The Jalopy Journal Feb 12, 2013If running a Ford engine, you can use an earlier style fuel pump with the integral canister fuel filter. I had a problem with my rusty fuel tank repeatedly clogging the tiny inline filter at the carburetor, and switching to the early style filter/fuel pump solved the problem. The filter can hold a large amount of sediment and rust and keep working. How does fuel tank rust get thru the petcock filter I was cleaning the rust out of my gas tank last night and I took the petcock out and was inspecting the filter on it for rips & tears. A thought occurred to me: how does rust get into my carburetor even though the very fine filter on the petcock is in good shape and I have an inline fuel filter?