Tuning for WOT

So the car wont sit still past 2100 with the brakes applied in my driveway and while I apply more and more gas.
I've never had a converter that would break loose at 2,100 and flash any higher then about 25/2600.

So help me understand exactly what flash and stall means in the context of a torque converter. The dynamic 9.5 claims that it stalls above 3800. when I hit the gas from a stand still, the tach tops out between 3500 and 4000, I assume thats "flash".

2100 rpms is about where the car starts to move as I gently add more gas. Thats in the driveway with street tires. I have assumed these are two different issues. I think that I'd like to launch at higher rpms to reduce that 60' time.