Absolutely. You can do your best to mark the position of the tabs on the camber bolts with a sharpie, so you can get the alignment "close" when you put everything back together, but you will most definitely need an alignment. No matter how normal the car might drive after the install, don't drive around if at all possible between the install and an alignment. I know this isn't always possible, as you will do the work at home and drive the car to an alignment shop, but whatever you do, make the drive as minimal as possible. You can completely ruin a set of tires in an unbelievably short time. I can't remember the exact figures here, so bear with me, but it's something like "If your toe angle is out of tolerance by 1/8", in 10 miles of driving, you will effectively drag the tire sideways across the pavement a 1/4 mile." The tread on the inside of the tire will be completely gone.
Sounds crazy, but I know from personal experience. :banghead: Don't make the same mistakes I have.