It depends on when the game was played, but the 87 team would beat a lot of good teams from today.
Hrkac would never put up a 100 points in a season now.
First, seasons are shorter.
Second, goalies are better. I would say goaltending has made 10x as many strides in the last 20 years as offense has. Goaltender's also had the most area to improve in IMO.
Third, teams overall are better. From top to bottom, there is a lot more parity. A lot more quality teams and players.