MAF on a stock engine - Any difference?

[Lexicon]

I will say that the money you spend on that piece could be applied elsewhere. If you calibrate it for factory squirters, you will in escience be replacing the same with the same. You may get the benefit of increased airflow, but nothing that the computer is going to make a good deal of sense of. You best bet is to aim for the mechanicals that make an engine breathe better and then you will use the MAF to tell that computer that the engine DOES BREATHE BETTER. Hold on to the money and go with cam, intake, heads, and then upgrade the electronics.