Took the injectors out of my car, they're in a dish in my room now. Which means I can't tell which is which, which in hindsight is dumb. I can tell which is either 1 and 4, or 2 and 3, though.
Anyway, they don't look f**ked. I'm tempted to get them off for flow testing, but I'm also tempted to buy a while new set, depending on the price.