Geoff Coenen
Well-known member
You can hang meat in my 1967 Coupe, the AC is that good. The leaky ducts & boxes permitted cool air to escape behind the dash prior to when I restored the climate system. Many improvements were added to ensure the air was cooled & blew forcefully out the LH, RH & center vents. All were sealed to insure air only blew out the vents. This is still an R12 system. Fact: this same AC system cooled a full size Chevy station wagon & will blow you away in a Corvette – if restored. The evaporators are the same size.

On a hot humid summer day, my dog Sam jumped in & did not want to get out. You can see the frost on the rear widow.
Following is a video that illustrates that not all things with same name are the same – or even close.
[ame]https://www.youtube.com/watch?v=R1c0jUS8TzA[/ame]
PS most who have slow & low air flow have an evaporator core clogged with bugs, leaves, seeds, pollen, twigs, organic debris, detritus.