Update. Verified that the fuel injector covers are swappable left to right on the intake, however due to interference with the oil filler tube, the intake will NOT install with the injector covers reversed as previously thought. So the defect on the drivers side cover was preexistent. Used a cut off wheel to remove enough material (a sliver) for the intake to install flat to the block. Bolted it up. No codes. Will edit previous posts.