No ac or heater control valve but maybe they are for firewall and not rad supportfirewall pinch weld - see above blower motor holding vacuum lines for AC style heater control valve - 1970 DartView attachment 1716425260
I’ll have to figure out where they go. The main Harnois of course held by the permanent tabs that run along the top.used on radiator support too to hold wires
Thanks!those clips shown here used on inside of radiator support for horn and parking light wires - location indicated by small recess in the lip it clips to