traxxas / rustler vxl/bandit vxl

[stampede vxlboy]

can anybody help me with the weight of 2 wheels drive car .i have got 2 full packs core rc weight on front end of the car. and it still pulling the front end up of the car. weight with a battery is 1907 and its still wheeling with a 7.4v lipo battery .plus its a heavy car its a 10 turner 3500kv but more like a 8.5 turn just carnt keep the front end down.