Heel/Toe pedal setup.

[parsonsj]

You don't want the brake pedal at the same level as the throttle, you want it higher so you can brake with the ball of your foot, and blip the throttle with side of your foot when you're at maximum braking effort. If you're having trouble, you might want to move the throttle to the left, so you can reach it. That's usually the problem with stock pedals (unless you own a Ford -- which gets that stuff right).