Thanks Trackrash.
I was experiencing this same issue during some auto x as well, so I decided raised the float level because I thought I was running out of fuel in the bowls.
https://www.youtube.com/watch?v=P6lzGR80Fnc (0:41 seconds the issue starts again)
I will set my float level on the lower side and see if there's any changes. I am still stuck on that it only happens when the car gets hot. That auto x run was my 3rd run and that's when I started experiencing it, the first two runs had no issues at all.
Ill check the floats/needles again.