Found this on another forum. It appears my oil pressure is on par for an LY6 6.0L:
For oil pressure it depends what engine you have for the specs engine hot
L76
1,000 RPM 24psi min.
2,000 RPM 35psi min.
3,000 RPM 38psi min.
*LY6*
1,000 RPM 22psi min.
2,000 RPM 30psi min.
3,000 RPM 33psi min...