From what I'm reading, are you "only" adjusting the BPW up and down to arrive at these blm results? I seem to recall a thread that tuning with BPW will tend to be rich for lower MAP values and lean for higher MAP values, so it's not a linear curve. If you have ve cells that are 96 and you're showing blms of 135ish, it's a safe bet the 5.0 injectors will do you good.