If at all possible, I'd recommend just getting a chip from a shop that can tweak your program right then and there...on the dyno (such as ADC).
Each car is different. What works for me may not work for you because my timing may be one or two degrees different on each cam due to factory tolerances. I retard my timing for gains - you may advance yours.
Trust me, there is no better way to do it than have your car strapped to the dyno and the chip burner right next to it. A/F a little high or low from 2k to 2500 RPMs? Modify the fuel table, reburn the chip and do another pull to see if it helped.
This is the only correct way to do it.
