4:1 to call preflop. What is your calling range?

Let say the action is this:

Preflop: Hero is BB with ??.
<font color="#666666">2 folds</font>, MP1 calls t20, <font color="#666666">2 folds</font>, <font color="#CC3333">CO raises to t60</font>, <font color="#666666">1 fold</font>, SB calls t50, Hero ...

What kind of range of hands do you call with in this situation. I am likely to call with hands that can flop me monsters and that are easy to get away from. I personally love to call with suited connectors, one gappers or two gappers here. The only cards I don't think about calling with here is like the bottom 40 and any A with low rag since that ace can get me into trouble. I am also really keen to fold marginal hands that I may get in trouble with like K10 but I may play those hoping to flop something better than TPNK.

So what is your calling range in this situation. You have a normal stack atm btw, around 1,500, blinds where 10/20.

I want to know if I should fold in these spots more or if my current play is ok. Keep in mind that I am looking for two pair or better, not TPNK here.