CHICAGO — St. John’s Zuby Ejiofor is about to realize his dream of making the NBA.

He’s almost certain to become the Red Storm’s first draft pick in a decade — maybe even a first-rounder after a solid performance in the NBA Draft Combine.

“It’s been a great experience,” Ejiofor said. “Having this opportunity is something I dreamed of for a long time and it’s literally right in front of my face.”

St. John’s hasn’t had a first-round pick since Maurice Harkless in 2012, or any draft pick since Sir’Dominic Pointer three years later. But Ejiofor has a shot — because he’s showing that he can shoot.

The defensive-minded bruiser measured 6-foot-7 ½ barefoot and 245 pounds with a 7-foot-2 wingspan, long and bulky but short enough that he’s going to have to develop a jumper.

Apparently he’s been in Las Vegas since St. John’s season ended working on just that, and it’s paying off at the combine.

“I mean, a lot [of practice shots],” Ejiofor said of his daily Las Vegas regimen.…