Where in Cali, Im from Socal and was wondering if I could possibly save on Shipping. Also, How long would this take? and are we to be giving you test heads? or are these heads we give you going to have the work done to them. At the same time I wanted the 2.5 heads with the big valves from the 3.0 will you be increasing valve size? Or is that an option? Also what about springs and retainers and such?