From the article Z-Forces in June 2014 Hot Rod Magazine:
"Pickups for both the oil pan and the fuel tank are designed with G-forces in mind. As Camaro program manager Mark Stielow told us, "If the gas gauge says empty in the Z/28, you're out of gas. It will pick up whatever is in the tank.""

Please, somebody buy a 2014 Z/28 and take the tank apart so I can copy the design. I will hang up and listen for the answer. Thanks.

 

You can also look at the VaporWorx tank system. It essentially places pickups at the corners of the tank, so fuel in drawn no matter where the fuel is being sloshed.

VaporWorx

 

Want to guess what fuel system Mark uses in his personal builds?

VaporWorx and check out the Fuel System Control section. Mark's previous and current builds use twin ZL1 fuel modules that can support 1300hp gasoline/1000hp E85.

 

Who is Mark?

 

The gentleman quoted in your first post above.

 

I really am an idiot.