Lay into it hard. Does this mean wide open throttle?
What is the truck doing that is reduced power? When does the power come back on?
No car manufacture makes a vehicle that will reduce power when accelerating, unless there is a traction control system on that particular vehicle.
Acceleration governor, what is this? Does your vehicle have traction control?
I have never had any reduced power on my coly, even when doing donuts or 100 foot burnouts..