[Chris1529]

If you "crowd" the converter too much, ie get to the point the car starts to creep, you are taking away the flash. Just because you can foor brake your car to 2500 doesn't mean you launch it there. You need to be about 400 rpm lower than the point you can still hold the car. This will let the converter flash, and the engine will make rpm quicker thus moving your car quicker. IT is different for every combination though, so you have to see where your car works best. You can also raise the air pressure in your front tires to help reaction times.