And I run well over three dozen different engines INVERTED just fine thank you.


Manufactures suggest tank height adjustments to prevent siphoning and flooding, which is mainly an issue that occurs PRIOR to starting the engine.

Once the engine is running tank height is not as highly problematic as is being implied.

As I said, our engines would merely die out during a decent or climb if it were!

Our planes see as much as a 9" tank height difference when they go nose up, yet your engine still runs fine once adjusted.
In spite of this people are agnonizing over a less than 1" difference when the plane sits level.


Pumps are great, but more often than not unneeded ( yes there are various exceptions ) if the engine is properly tuned and configured.