Adam, you need to learn to modulate brake and accelerate at the same time. This prevents overbraking, getting to the point of locking up and it also keeps the kart more stable under braking and when you first turn in. You should be back on accelerator just before the appex, so you are ready to have full acceleration on the way out to maxamise straightline speed. This depends how well you have maintained revs...
Adam, you need to learn to modulate brake and accelerate at the same time. This prevents overbraking, getting to the point of locking up and it also keeps the kart more stable under braking and when you first turn in. You should be back on accelerator just before the appex, so you are ready to have full acceleration on the way out to maxamise straightline speed. This depends how well you have maintained revs...