In the link provided by Bubba the pickup looks like the typical Ford or Mopar pickup so I believe you could test it by rotating the dist shaft and using your voltmeter to look for AC voltage out of the pickup. An analog meter would be best. See my web page for more info. I would think you could drive a HEI module with the Mallory pickup.
http://myplace.frontier.com/~wgmumaw...rsionBills.htm