My impression is that the FlashCal messed-up the Edelbrock tune somehow? It may simply be that the tune provided by Edelbrock is just not that good, as this is a common theme with bolt-on forced induction particularly when first released.
The one other person that I have found with the E-Force went with a custom tune.
You could PM Hoopskier over on JK-Forum for a direct answer.
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