MSD brain teaser
12V at the white? I'd have to look this up, but I DON'T THINK SO
White is for breaker points.
What do you mean "the two old distributor wires?"
You talking about the existing Mopar distributor? They have to be wired to trigger the MSD
http://www.msdignition.com/WorkArea/DownloadAsset.aspx?id=15032386165
HEAVY BLACK........ground
HEAVY RED.............continuous 12V
SMALL RED.............switched 12v IE "ignition run."
ORANGE............Coil POS
BLACK................Coil NEG
NOTICE ONLY THOSE TWO WIRES AND NOTHING ELSE should be connected to the coil. DO NOT connect a tach to the coil!!!!
WHITE.........tape off and DO NOT GROUND. This is for points trigger
VIOLET and
GREEN These are the magnetic trigger IE factory Mopar distirbutor
Re read the destructions carefully. To test spark using magnetic trigger short and "unshort" the green and violet.
"or" repeatedly short / unshort the white to ground.
THE WHITE MUST be taped off when in operation