Jimmy,
As I understand NASCAR, opps! I mean NECKCAR, does have a system that looks at the cars attitude and any high G forces that does turn of the electric fuel pumps. 70 psi gas spraying out of a broken hose just doesn't appeal to me. I also understand that many of the mechanics and engine builders really don't care for EFI. So much potential to do wrong with EFI and I can bet you right now that the high dollars teams have a pack of "bit nerds" working on the ECU to see what they can get away with.
Rex