My truck's major mods are a set of DPS stage 2 injectors and a 6 position DPS chip. The chip's power levels are high idle, stock, 50HP, 75HP, 120HP, and 160HP. When using the 120 and 160 settings at full throttle the truck cuts out. This even occurs w/ the 75 power level if I am in the throttle for an extend period of time (from a dead stop to about 70mph). Does this sound like the stock HPOP is not keeping up or is my fuel stystem not up for the task?