Apples and Oranges!
But that said, it's all relevant!
HPFP doesn't create any power in itself. And honestly, neither does a DP without tuning for the difference in airflow. Same goes for the HPFP, really only comes into play when exceeding boost spec and getting to a lean condition or static fueling, when more fuel is needed. So unless you're pushing to the limits, a HPFP isn't going to help do anything, and again you need to "tune" the extra fuel anyways.
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