2/4 Flop big draw, get raised, plan ?

That's not a big draw, that's an absolute monster draw.

+1 vote for push no matter what.

[BluffTHIS!]

I'd like to make clear that I am more often pushing this flop than not. But my post above shows that there are some important things you need to think about including the types of players you are against and the types of hands they might have. And you would definitely rather be against a set here than another draw (although if you were the one with a pair and a great draw then that wouldn't be so).