I AM IN THE PROCESS OF RESTORING MY 70SS MY BABY I BOUGHT IN 1972 WELL THATS ANOTHER STORY PROBLEM IS IT WAS A NON AIR CAR DIDNT
MUCH MATTER THEN BUT NEED TO BE COOL NOW CAR IS COMPLETELY DISASSEMBLED. ON FIREWALL THE WHOLE IS DIFFERENT FOR MOUNTING AIR CASE ANY IDEAS

I would do add on ac. Unless you are up for a major struggle to get all the parts, hack on the firewall and on and on. If you could find a donner car with air, might make it a little easier.

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Wally
Gold #67
67 Malibu "Small Block"
90 SS454
71 Malibu "Small Block"
93 torch red vette

HAVE SEVERAL PARTS CARS SOMETHING JUST LOOKS
DIFFERENT BETWEEN AIR CASE WHOLES ON FIREWALL. I WANT TO USE FACTORY AIR AND NOT AFTERMARKET NEED HELP

The firewalls are completely different between air and non-air cars. These are not limited to the box cut out but there are additional holes for the wire harness and vacuum lines.