Yes. My Velocity has a 5 gal header tank hard-plumbed to the two wing
tanks. The two wing tanks self-level within a gallon or two during
normal flight (and sitting in the hanger). A pick-up tube in the
header tank goes off to the fuel system thru one on/off valve that
remains always on. Can't get much simpler than that.

Sid Knox
Velocity N199RS
Starduster N666SK
KR2 N24TC
W7QJQ

For a low wing aircraft with dual wing tanks, what is the point of
having a fuel selector valve. It seems to be a source of some fuel
exhaustion caused accidents. Wouldn't it just be easier to feed off
both simultaniously?