A swirl pot is not that hard to fit in a tank. I fitted one in the robin hood 2b I built. As it is only a small box that the pump pickup sits in, with holes drilled in it . this allows fuel to fill it but restricts the flow out during fuel shifts. It can be secured to base of the tank with a single bolt, which is easy to seal. A tin can is ideal of dia. aprox of pump aperture hole size, cut down to about 60mm hight
tony gigg
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