I have a 1972 z and want to switch it over to a pertronix ignition or something similar.I like the pertronix because it keeps the stock look and it seems reasonably simple to install. Do you retain any of the original wiring( or interior pieces) at all or do you basically use the shell. I have an extra distribtor and the wiring looks bad, however the rest looks great. Hope this is not a dumb question.:stupid: Thanks in advance for any help. John