Edelbrock head questions

With a roller spring (lots of pressure) I would do spring cups so that the spring does not dig into the head (also helps locate the spring). You can vary the install height by cutting the spring pocket, changing retainers, longer valves, etc. With that cam (I'm not sure what Crane recommends) I would think about installing it at 1.80" to give you 225# seat and about 566# open. On that same note, you will need some good rockers to handle the high spring pressure.