Which harness

I am updating all the wiring harnesses in my car and need to know if this is the correct one for me. I have a 383 Challenger R/T from LA and I will be going to a electronic ignition kit when I put the car back together. what hareness do I need?

https://www.yearone.com/Product/1966-74-a-b-e-body/hu107em

OR


https://www.yearone.com/Product/1966-74-a-b-e-body/hu107e

HU107Em is the correct one for your application if your using a Chrysler ignition system...