[sdx455]

the plan is to update it and re install , I have a Building HVAC background . I want to test all the vacuum dampers with my possible low vacuum I think I have about 12 with RamIV cam. I need that vacuum hose diagram

[dos75GAGTO]

I might have that vacuum diagram...I will take a peek and get back to you. Regarding the original system...I ditched the VIR and worked with Classic Auto Air for all my A/C needs. For the most part they rock and speak in a simple language for me to understand.

I have a link here to them if you are interested...scroll down to the bottom for the VIR Eliminator Kit. I just got mine done a few weeks ago...Did it all myself, drove it 3,200 miles on the Hot Rod Power Tour which went into the south (frigging HOT) and the A/C worked awesome! Only words of wisdom I have is the system calls for 4 1/4 pounds of R-12...R-34 is significantly less and cooling at 44 degrees. I'll get back to you regarding the diagram.

http://www.classicautoair.com/1975_P...r_Upgrade.html

Alan

[Grand73Am]

Good to hear the Classic Auto Air upgrade is working good for you. I'm interested in it too for my 75 Lemans. And that VIR eliminator too.