I guess I should have been a little clearer. I meant that in the event that your stock AFM is maxed out, you do this and get a full retune.
As a side issue I was questioning whether the relationship between fuel and air flow was directly proportional, ie would it be close if you upped the injector size by random% and then increased the cross sectional area, using the abovementioned method, by the same percentage?
I guess your answer is that it wouldn't be good enough but I wonder how close it would be?