msd

[dano73]

hey cool people i have a 73 challenger she has msd system installed when i got her works well using factory distributor and looks like lots of factory ignition wiring.heres the thing does anyone have a color schematic for adding msd to 73 challenger so i can see if i can trim some of those wires in there just trying to clean up a bit.its a bit messy just want to make sure got just whats needed thanks dano73/8.5 mpg

[Chryco Psycho]

All you need for the MSD is the brown & blue wire on the firewall that used to connect to the ballast resisiter , the brown wire form the coil to the ballaste , the 5 pin plug for the ECU & the 2 wire plug for the dist can all be eliminated