Fuel break could be an issue yet could be inconsequential to the surging issue. The NBS (New Body Style '99+) trucks that have surging issues have been rectified by swapping the turbo wheel with what's known as a "Mischievous Wheel"
This is fundamentally the wheel utilized within the OBS (Old Body Style '94.5 - '98) trucks. For absence of force, I'd prescribe checking the fuel weight. I drive an OBS truck, so I don't comprehend what your fuel weight ought to be. Assuming that your fuel weight controller has a schrader valve (like the valve stem on your wheels) you can test it that way.