Converting MSD to Chrome Box question

[Jacksboys]

We have been having issues with the ignition on a 440 in my Dart.  I am planning to convert a full MSD ignition over to the Mopar chrome box but still retain the MSD distributor and coil, but I cannot figure out which ballast resistor to use.  Has anyone tried this before?

[nivvy]

dont need a ballast resistor with msd ignition... edit i just saw your going the other way.... 

[Jacksboys]

I was doing some reading and someone suggested using the .25 ohm resistor, but they were using the MP distributor.  Would this be the same for the MSD distributor and coil?

[Chryco Psycho]

the MSD coil requires a low Ohm ballast resisitor .75 or less when not being fired by a MSD ign box

[Jacksboys]

the MSD coil requires a low Ohm ballast resisitor .75 or less when not being fired by a MSD ign box

Sweet.
If I looked it up correctly MP has a .50 and .25 resistor, which one would you suggest?

[Chryco Psycho]

.5 ohm

[Jacksboys]

I guess I was misinformed about the .50 resistor because I cannot find it for sale, but I do see that everyone is selling the .25 resistor.  Do you think this would be too low?

[Chryco Psycho]

Should work fine

[Jacksboys]

Thanks for the help