could someone send a link or something on how to set the cast/camber?

 

i took my car to brakecheck with the camber bolts installed. i bought a lifetime alignment for about $100. i let them know that it had aftermarket camber bolts on it and they aligned everything perfectly. now, everytime i go there for the life of the car, they will set the alignment and check the camber. not a bad deal in my opinion since we have to go to a shop (well, most of us) to get our car realigned anyways

 

Are camber bolts a must?