>I once saw a chart that listed - for each van type - a chart that listed
>RPMs if you know MPH and what gear you are in.  Does anyone know where to
>find this.  My search has come up empty.  I am interested in RPMs for a 1981
>automatic.

If you know gear ratios and tire diameter you can try this:
http://www.weirdstuffwemake.com/tools/calculators/driveline/

It's a thing I made some time ago when I was learning to do a bit
of flash programming...  You'll need the flash player (5 or greater) to
use it.

Steve