What's all this talk about getting "TUNED"? What does that mean?
tuning means to change the air to fuel ratio(taking away or adding fuel) or adjusting the timing to accomodate from any sortof modification that would alter the stock timing and/or air to fuel ratio.
You can also get a stock car tuned to make it run a little leaner because leaner = more power.
An engine management systemis what makes tuning possible.
I hope that answers your question