From 2000 miles away, it almost looks the the o-ring is missing.
The stock injectors had a plastic cup of the end and the O-ring is still required. O-ring is typically made from buns, and is either black or a light brown. Once installed, the plastic cup is not visible. Maybe the O-ring is not installed on the injector, but placed below the injector in the intake. Only one way to find out, and if so, it needs to be corrected.