-Marked the flange on the snorkel to match the mating surface of the fuel injection servo. Marked the top of the snorkel (square end) to the bottom of the left inlet ramp per the instructions. Removed everything to take out the ramp and cut the hole out. Spent some time scratching my head on how the retention system works - I think I know what to do. The instructions aren't too bad if you study them for an hour...