You have as South:
♠ K52
♥ 2
♦ K754
♣ J8743
IMP scoring, you are Vul vs nonVul.
Your RHO opens with a pass, you pass, LHO opens 1♥ - they play SAYC.
Partner overcalls 2♣ - we too play SAYC, so 2♣ is typically 12-16H, 5card.
Now your RHO raises to 2♥.
Your call now.
If I say, that this is Butler scoring, that the average level of the pairs is rather low and that the actual opponents are one of the better participating pairs, does that influence your decision ?