Gauges incorrect...voltage limiter upgrade

I believe they work OK on 5V. SOMEWHERE, Moparts, Madd, etc, there was a "do it yourself" project to use an inexpensive regulator and build one.

Here's one:

http://1962to1965mopar.ornocar.org/ml-instrument-voltage-regulator64.html

http://www.mopar1.us/instrument.html

http://www.allpar.com/history/mopar/electrical2.html

the high end deal:

http://rt-eng.com/mediawiki/index.php/RTE_limiter

at least one thread on the subject

http://www.forabodiesonly.com/mopar/showthread.php?t=86097

Another one is called a Runtz, just Google it