Savage + 6s + KB45 8XL = Total un-useable insanity....

Here is my setup...
Extended 14lbs+ savage locked in 2nd gear.
Turnigy HV esc
Zippy-H 6s 4000mah 20-30c
20 tooth pinion
48T steel spur gear
KB45 8XL 1700kv

I ran this setup last nite for around 5 min and the batteries didnt get above 80F and the motor was barely at 100F but I couldnt really use anything more than 1/2 throttle. The kb45 motor is just waaaaay too much power, I can wheelie on 1/4 to 1/2 throttle all the way down the street.

Punching it to full throttle results in a back flip instantly that almost gets it back on to its wheelies without the body hitting the ground. Yeah I have a wheelie bar but it actually misses it because it does back flips on full throttle.

What can I do to tame this thing down? I would have to mill a longer slot in my motor mount to put a bigger pinion on, but it is possible. I have a mamba monster coming inbound maybe that will have software on it to tame this motor setup down? Any other ideas????

To be honest my old setup of 4s + feigao 7XL was plenty fast, I want something around the same speed maybe a little faster but with the effieciency that I am getting with 6s now.