Normally I'd prefer Under rather than Over when it comes to NBA playoff basketball. But in this case, I find the value to be on the Over.
The Timberwolves and Suns met just two days ago. There were 235 points scored in that game.

Minnesota won again to go up 3-0 in the series. The Timberwolves are dominating the paint. They are averaging 117 points in the series. Phoenix doesn't have the defensive capability to shut down Minnesota.

The Suns are a frustrated and humiliated team. They are playing at home, though, with nothing to lose at this embarrassing stage. So I see them playing fast and furious with a tempo that suits an Over. Phoenix certainly has the offensive stars to produce a lot of points against any team.