How did this happen to my pushrods?

Man in my thirty years of wrenching i have never seen a push rod look that way!!Thats known as candy caning ,,I' am sure the did not look like that when they were installed.By the way a .450" lift is no small cam!!Check comp cams recommendations for valve springs with that kind of lift!!!Ya know they rotate,for steel to twist like that something is binding them,,the rods in question, were the all intake or exhaust??Looks to me like your springs are bottoming out,if that's the case i'll bet that thing would not fall out of a tree if you pushed it!!!Get rid of that cam too when you fix this for the lobes are destroyed!!!! If you have friction or binding you are losing horse power and races..!!! Oh ps!!shirt can those lifters too,,Oh by the way .450" is not huge for a mopar "b" motor but big enough to replace the valve springs i think!!!Good luk and MOPAR TO YA!!!!