I'm not exactly sure why I had as many problems as I did, the heads were not milled, the block wasn't decked, and the head gasket was actually a little thinner than stock so I shouldn't have had to run longer rods but I had to. Even the base circle of the cam is supposedly the same size as stock. All these things effect pushrod length, and if everything remains the way ti was stock then there shouldn't be a need for different length rods and such, but you never know until you try. The problem with pedestal is that there is NO adjustment, you tighten the bolt down to the proper torque spec and that's it. In my case my bolt was torqued down before there was even any preload on the lifter, so I had to use longer pushrods so that I could preload the lifter. I'd sell the rockers and go stud mount if it were me...