bypassing ballast with stock ignition module

i guess what im trying to do is wire up the old ecu without the ballast because im running a 12 volt coil and if im not mistaken the ballast cuts down the voltage to 6 volts because the stock coil is a 6 volt coil. i thought ive heard of people taking their ballast out and just putting in a lead between in its place. im just trying to figure out how id need to hard wire it so it would run and i could see if my msd box was bad. unless what your saying is that the 5 wire ecu needs the dual ballast to run i somewhat get the dual ballast diagrahm but not sure where the "u" wire goes