@Hashu
2 fuel pumps, well it depends what kind of fuel pumps they are, I mean are they from the similar Charade or a From the Corolla 1.6 or from the 20V. And again depends how they are installed two different lines going into one or one line two fuel pumps kind of like one pulling the other pushing.
Youdo have an option to change the pumps to one with more flow, like Walboro 255lph (Litre/hour) or you can install a one from a Supra tt which is more then sufficient for your purpose unless you are looking for future upgrade and mods. In that case then I would recommend going with the Walboro 255lph.