So if i put a news MSD coild (Like below) then I would not need the ballast?Unless your coil has 3.0 ohms of internal resistance you need a ballast resistor on the + side.
Unballasted voltage will overheat and shorten the life of your coil.
The Unilite I don't know. What does Mallory recommend?
Seems like many of these ignitions that connect to a coil can be sensitive. And connect it a constant 12 volts and it fails just like Pertronix.IIRC the unilite is VERY VERY sensitive to voltage. And their instructions say either a ballast resistor or resistance wire must be used.