If a team gets a flying start in the powerplay overs and scores in between 50-60 runs for the loss of 2 wickets in the first overs then it can easily beyond 160 and it is even said that

ANYTHING BEYOND 160 WILL BE A BONUS IN A T20 MATCH

Even if you didn't a start that you were looking for than you should focus on building a tiny tiny partnerships of 50-60 runs as it might help you in scoring atleast 160 or probably more than that as it is said that

ANYTHING BEYOND 160 WILL BE THE BONUS IN A T20 MATCH