need help fast!!!!!!

[satinstruck]

hi guys, I just got a Xray XT8 Truggy and want to convert it to Brushless...I got a Mamba Max ESC, Hitec HS-5955TG Servo, Futaba 3PK with 1024 Receiver.....I think I'll get the RC Monster motor plate, chassis brace. but I really need some advice about the BRushless Motor!!!!!! If I'm going to use 6-12 Cell(4600mAh) batteries and I want the truggy really fast with enough torque what's my choice for the BMotor and the Motor Pinion?????? REALLY REALLY NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!! THANKS AND BEST REGARDS!