Adjust oven rack to center position and preheat oven to 375 degrees F. Heat oil in a large wok or Dutch oven to 350 degrees F. Add 1/3 of tortilla chips and cook, agitating and flipping them constantly with a wire mesh spider until bubbles slow to a trickle and chips are pale golden brown, about 2 minutes. Transfer to a paper towel-lined bowl, season with salt, and toss. Allow to drain for 30 seconds, then transfer to a second bowl. Repeat with remaining chips in two more batches.
