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The big issue with forced induction and the DME isn't air flow, as has been noted, the computer compensates by itself. It's ignition timing. The mixture is more volitile at forced induction pressure. The DME isn't programmed to compensate if it's set up for a NA engine. It can only react to the knock sensor, which is reactive, not predictive, and probably has limited abilities there. That's why you want a correctly programmed DME.
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