While we initially planned to use a Branda Performance oval Cobra air-filter assembly, the dual-stud mounting configuration, while historically more accurate, created fit problems with the mass air meter from the Mass-Flo EFI system. The base of the Branda unit also raised the whole air-filter assembly too high to fit under the Roadster's body. We're sure the Branda part would fit great on a carburetor-equipped 302, but on our EFI 351, it simply wouldn't work. We ended up using a Ford Racing Performance Parts single-stud version. The base of the filter housing is shown here, with the mass air meter wiring passing through the base and connecting to the meter itself.