Savage X specific questions

Alright!

Tomorrow money for new tires, and 8xl will be shipping out. That is as far as I have gotten so far. I have been considering running an all metal 2 speed, if that would be strong enough? I saw a video of this guy doing it, it wheelied on dirt everytime it hit 2nd! I could get more top end too. Other then that, a new body is in order, along with a Savage wheelie bar. Not sure if I am going to upgrade to Flux specs or do a custom conversion (kershaw designs). Input?