E-Firestorm and Mamba??

Pulling in an old one... anyone out there still running these? I have one with a 5700 sidewinder in it. Haven't ran it since bought my revos (pre-lipo). Now that I'm getting more familiar with lipos, I thought I'd start her up again and see what she can do on lipos. Any thoughts or suggestions? I was running NiMH, 4600, 7 cells and kept burning them up. I think I have a 19 tooth pinion on right now. I'll probably gear down for lipo. Even if you're not running a firestorm, but some other system. Just looking for some advice on the motor/esc capacity (outside of what's printed) based on experience.

Thanks.