AKSUMMIT8

After a break from RC for a few years, I picked up a AE SC8 nitro Truck. technology has come a great distance. I forgot what a blast these were to spend a few hours beating on. I actually dug out my old Grasshopper/Frog/Hornet (MRC originals) and gave them some TLC. Here's my question I'm looking for a recommendation on a Lipo setup for the stock transmitter, and reciever that came with this set-up, looking for longer run times than the "AA's". I've done some research but there's some many options out there, looking for suggestions or recommendations on a Battery set-up, thanks- PS I'm not interested in converting to Electric