It's up to you obviously and whatever whoever is going to map it thinks to be the best strategy, should be foremost in your mind. They'll want to be working on happy and familiar turf. With big boost behind any closed throttle plate, you're going to see dramatic changes in cylinder filling against throttle angle. The single inlet plenum probably acts as something of a pillow in this respect and having general MAP sensing will help with the precision of the air metering.
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