Ok, there has to be a swap for the blower fan so these things will put out some airflow.... Anyone figured out one yet?

In my CD, I have the center vents flap open, (center pod vac blocked off) It helps quite a bit, and you can still control them of course by simply adjusting the vents themselves, but the air flow is still pitiful compared to just about anything else I've ever driven. The 81 is basically the same way and every one of these I've been in... so I'm leaning toward this being a chronic issue.

Now that I have the A/C working cold, it would be nice to be able to feel it in the back seat....