LS970 has the same hardware as E975 so kernel should be the same, the only difference is that LS970 is CMDA, causing wifi issues on E975.
Viper ZVC is a stock based kernel with some very useful modifications: UC, OC, voltages control, faux gamma / audio and dynamic FSYNC.
Download from HERE
IMPORTANT: I will also upload a flashable recovery archieve with necessary modules to get wifi working, and modules_stock in case you restore LG stock boot.img
- max / min CPU freqs random reset (usually after reboot you have to set them back in trickster mod)
- Strange LED behaviour (fixed using LightFlow with direct mode and root mode switched on)
Original thread: Viper ZVC
Enjoy more battery life and performance on your stock based ROM
gearslam for his kernel
davevinci for modules