I read that long ago and i recall checking when i was in there and realizing it doesn't matter for some reason. It's been a while since then, so i cannot recall why. But i think the thing doesn't cover the hole no matter how it's oriented or something. Whatever i found when i checked that out after reading that, i determined i didn't have to worry about it. Maybe it was written concerning a different slide that was formerly in these carbs or something.