[CHANMADD]

A rev kit is a set of springs that sits on top of the lifters and presses against the bottom of the head to keep the lifter tightly against the cam, The push rod sits in the middle of the spring, and as such the "Rev Kit" has not much to do with the guide plates or rockers or stud girdles.The rev kit springs are only needed when you are going to turn high RPM's with a fairly agressive cam so the the heavier roller lifters stay in contact with the cam and don't start bouncing at high RPM.
John