Stock tunes w/ no bolt ons are pig rich, this is true for the srt4, magnum, old cobras, srt6 etc.

You slap on some bolt ons (pulley, intakes, etc) and it leans everything out and you get some great numbers. (cobras pick up 75 horse with a tune and a pulley)

But as soon as you want to go further, past the stock fuel system, its near impossible to get more fuel then the stock setup wants to give.

Sorry bout the confusion.