Flexible fule line recomendation

[Kube]

Originally Posted by rotorwrench

The check valve may be for folks that have changed to an electric pump back by the tank. Folks do al sorts of mods on old cars whether they are an easy fix or not. The OEM was good enough for grandpop to it's good enough for me as long as it keeps functioning and parts are available.

That hadn't occurred to me, but I must admit, that's a good possibility.
I do realize I tend to think along "originality" lines. And, like you, see no reason why these cars can't operate as they were designed.