Change sway bars in matched sets to maintane balance!
Any of the Viper Days vendors can help you.
Call Jon B
www.partsrack.com, he or Archer Racing, or Bobby Archer, or any of the race companies can discuss your handling desires.
Remember, to make a car corner flatter, you have to take weight from the outside corners(tires) of the car and move it to the inside corners(tires). While this may be "flatter cornering", it is not always faster.
You could also install a smaller rear bar, this will make your front bar feel thicker!