moparraceman
Well-Known Member
have a 340 car 19 64 dart changed from points to electronic ignition ,do i need to put a dual ballist resistor in instead of the one i have ? or how should that be set up ? thanks
i have the 4 prong chrome box
The M&H replacement and upgrade harnesses have the dual ballast so they will work with either the 4 pin or 5 pin ECUs. That way they are universal. If you have a harness with a dual ballast, that is ok, just one side won’t be used if you have a 4 pin ECU. Doesn’t hurt anything.