My default is a 3S 40C/80C 4200mAH Thunder Power pack, but something tells me that I should be able to get away with a 40C/8C 5000mAH pack with this motor if the track can hold the power.
Edit: FYI, here's all the batteries I get to play with at any given race (their's another 3S 4200 40C pack in my dragster that I didn't take out for the photo). I run three classes if possible so I need to have these options for best results.