[jmelong]

Before I take the dash apart I want to get a vacuum diagram so I can verify the correct routing of all tubing. Where can I find such a diagram for a 1970 with BB motor, A/C, Power Brakes, etc.

 

[HKDUP87]

HERES ONE BUT IT COST.
http://thepartguy.com/diagrams_chevelle.htm


Try this


http://www.fixya.com/cars/t11991498-1970_el_camino_heater_vacuum_hoses

 

[jmelong]

I have the wiring diagrams and noted that on the A/C page it shows vacuum routing for the A/C system. I find it strange that there is nothing in all the GM manuals I have (or at least I cannot find it). I really wanted to check the firewall forward vacuum routing.