Progression Distributor in a Duster

Yep it's not for everyone ! But if you're into tuning your dist, it's better than chasing springs, especially if you are paying someone to do it. This kind of antiquates their money making job with technology.
You don't have to use a relay, it's just a better practice.
I'm just showing what is out there, for a couple years now LOL. Just saying, it will fit a Duster.
Progression Ignition