You could gear down... So you have just enough wheelspeed to pull of a backflip or double or whatever you're happy with.
I recently lost a pinion (15 I believe) from my 6s Outcast and put a... Uhhh, 19? in there. Anyway, I geared up. While it was fun, I had a tire blow out and at full throttle...
Do they tear or just get unglued? If it's the latter, it's normal to have to reglue every now and then.
For new tires, I like Arrma Backflips (regular or LP). Too large and massive and they'll break stuff. Too small and light you lose air control.
Not sure about wheelying, never liked that. I...