Here is a picture from "seat level on the drivers side" in my 77 911 of the "HVAC Box" on the firewall.
Can I drill a 2 1/2" hole in the air box without damaging anything inside? I'll then run an AC hose to a vent that will be mounted on top of the console. This is a "home made" attempt to get better air flow than provided by the stock vent system.
Thanks,
Jay
77 911S