WUR pressures are most likely not the same. Need to determine exactly which WUR is installed and then find the chart. Here's a link to a thread I started about troubleshooting my '75 with the 009 WUR and it has the chart in it:
http://forums.pelicanparts.com/porsche-911-technical-forum/780952-sorry-yet-another-cis-troubleshooting-thread.html
Be sure to check pressure retention and warm control pressure too (with/without vacuum).