I have a !970 Dodge Dart. If you up grade to Pertronix or Mopar Electronic Ignition do you still need a ballast resister?

What do the available online instructions say?

for an electronic ign conversion from points you could pirate what you need from a yard: dist/ECU & pentastar connector plug in/pigtail & the ballast & if it is an (OE) 5 pin ECU (& likely it is) it will need the 4 terminal (dual) ballast that it will have there. If what you see/grab there is a 4 pin ECU/2 terminal "single" ballast that will work also. & if you just get the dist/4 pin ECU/pentastar connector you can keep your points ballast/coil if desired or grab them also while you are out there. Easiest would be to get the dist/ECU connector which has pigtails on here in the parts for sale possibly or eBay or the whole kit from your MP dealer which will have the infamous orange box & a nominal 1.25 ohm ballast. Someone just mentioned that rockauto has boxes for cheap & carrying a spare is prudent (your parts house has em for cheap). No info on Pertronix but it gets many good reviews & very very few complaints of issues.

With the Mopar Electronic Ignition you still need a ballast resister. With a Pertronix I don't think you need one.

hi

if you use the large accel coil you do NOT need a ballast resistor !!

^^^ that wouldn't be the big yellow Accell beast would it? #14001 iirc

For the Pertronix you can choose to wire it with or with out, without you eliminate a potential weak link in the system, and the HallCell see a true 12 volts to the system