What Big Rat said.
Only a couple more things:
-Make his job harder. I mean, keep your speed up, near the first blackout speed. Slow opponents are easyer to hit.
-Never break "straight". I mean, dont fly on a predictable flight path. If your opponent is lined up perfectly and is just about to shoot, you can even do a quick negative G maneuver as a last chance.
-Dont give him a big target, your full profile with the wings. Give him your side, much harder to hit.
-And finally, try to maintain your energy against a BnZ opponent. Sadly, most of them wont come down and fight, not even with a better turning aircraft. Climb a bit when they extend, gain energy, but dont hang yourself. In the other case, if they come down, just break to the side, pull up, chop throttle, reverse, killshoot him.
Best luck!