[Nditiz1]

Greasy fingers on YouTube has a great video how to on doing a string alignment.

Centering the rack is a good thing to get full turns on either side, but it doesn't matter where your steering wheel ends, it's all asthetics at that point.

Getting the string box is very important. Try to center the string on your center caps and make sure your strings front and back are equal distance apart otherwise your lines will not be parallel.

With any alignment, you can get it perfect and your car may not track straight. Corner balance is crucial to ensuring that.