Ignition systems OEM or?

I've been running a recurved Chrysler oem distributor with an upgraded module. It started slow, until I installed a 12 volt bypass to the coil on "start mode." Is the oem voltage at the coil 6v? And is their a way to pair a hotter ignition with the oem distributor.
The stock Chrysler ignition wiring is supposed to bypass the the resistor in start. Was it not doing that? It also helps to know what we're workin on here.