[west coast]

Yes it is all about how much deflection your combo has. From what type of rockers you have is a huge in deflection shaft, pedestals or studs. also the length, diameter and wall thickness of the push rods it all adds up. so pushing your cam lift to your max spec and not going over is hard to do when ordering cams. My tear down last year when we measured it was really legal enough to think we were doing something wrong when we measures it.