Could my 340 block be filled?

MOPAROFFICIAL said

Don't use the ballast resister with that coil, bypass it.

Click to expand...

If you have a 3 OHM coil primary, THEN you do indeed pull out the ballast. But this is a 0.7 OHM coil. The MSD electronic module controls the coil current quite differently than points or the Mopar electronic system so can run this coil without ballast with the MSD module. But you cannot use that MSD configuration with either the points OR Mopar electronic configuration.

You can sometimes get by with it on the strip by running short periods of time, but on the street, it will overload one thing or another in the Mopar electronic ignition (or the points if still being used). Waaay, way, way too much current will flow with this coil and no ballast, which can blow the switching transistor or burn up the coil.... or the voltage kick at the coil (-) will blow out the switching transistor in a different way or take out the condensor.