TTS Fueling issue

I have a problem. On Road Atlanta coming out of turn 7 hard and less so but also there getting on the throttle up the hill will still turning in turn one the engine coughs sputters. It is definitely fuel cut out. The thing these places have in coming is long sustained right hand G forces. I was sure it was a low fuel sloshing around and uncovering the pickup. I filled the tank and it happened only very slightly less with a full tank.
I still suspect it is tank/pickup related it just doesn’t make sense.
If anyone knows how the tank is arranged and can shed some light on this I would be very greatful. Big problem is their is no easy way to recreate the problem.