I have not researched it but, I think just a replacement/swap to a electronic voltage regulator would provide the stable output recommended for the electronic ignition. I you want more alternator output- go to the square back alternator with matching regulator.Good morning . I am putting a Mopar electronic ignition setup on my 69 Charger 440, just wonderinf what alternator to use? Would it be a 71 and up? Thanks