I tend to agree with Gimpy here... Anything less than a 3500 is a waste in both time and effort. You WILL want a little more if you start under 3500. I started with a 3000 because I didn't do enough research and couldn't find anyone at the time around here that had an A4. Then moved to a harder hitting 3500 and was VERY pleased. Once I went into the motor I jumped to a 4400 and was AMAZED at the launching power. 1.4 sixty foots were the usual, granted the 4400 was a wee bit much on the street with 3.23's. Once I moved to 3.73's+ it was much tighter.

The proper way to select the converter is to take a look at your locked dyno graph. Where is the start of your peak power? Select a stall speed as close to there with the correct shift extension to drop you right back into that sweet spot as you can. From there you need to drive similarly modded cars with stalls to see what you feel you can "live" with on a daily basis and make a compromise.