Sounds like a near aerobatic maneuver to me. An aquaintence wrecked a Baron in a somewhat similar condition. He did a hasty takeoff with the fuel selecters in "aux" position. Mains full, Aux's less than full. The airplane is placarded against this and its also covered in the AFM. The mains have two fuel lines, but the aux tanks only one.
He took the active accelerating while turning 90 deg to line up for an intersection take off. Centrifigal force was no factor for #2 tank, unfortunately the #1 tank unported during the turn. It ran just fine until he rotated. Then the air bubble hit #1 engine. You cannot believe how fast it hung a sharp left. Several witnesses. New airplane with less than 100 hrs. I'm pretty sure that the engine would have resumed normal operation on its own if only they were at cruising altitude. They made Barons for a long time. Single engine planes unport too. FAR 23.955. covers this for normal catagory.
Is this the sort of condition that you are describing?
Bob