keep your eyes on, whats going on, outside your plane. you have to know the enemy is there, before you can evade him.
learn ACMs. go to the Training Arena and ask if any trainers can help you with learning ACMs.
as for the F4F-4 try to keep it in the 200-300 mph band. in hard manuvers, it'll quickly lose speed. try to regain as much as you can after the manuver.
it'll manuver all the way down to stall speed. but get too slow, its a sitting duck. learning the ACMs will teach you to manuver and keep speed from falling too much.
another thing is, what is the enemy flying? knowing the enemies planes capabilities, strenghts, and weakness.
and fly to exploit their weakness. know thy enemy.
I could go on and on, but I have to go now. hope this helps some, anyway.