THis might help you on the pack set up (it can also be found in the sticky thread "Speed Calculator")
http://www.scriptasylum.com/rc_speed/_lipo.html
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES