My current power train of preference is a 1300kv motor, 3S 2200mah battery, a 8x4 prop, and a 30amp ESC. I have more than enough power for a heavy FT flyer. If your motor can handle it, you could jump up to a 3 cell battery with the 8x4 prop and be fine. My system is rather overkill. The ESC is a much higher rating than needed and my motor can handle a bigger prop. But everything stays perfectly cool even if I'm full throttle for 10 minutes straight.