factory
Factory distributor, and everything under tin and aluminum covers.. never had any of of any issues
As far as i can conclude, this engine swapped in that i've been putting brutal hours on, and hours before me was used @ 100k miles back in 1980's, late 1960's cast#, and no issues yet. The current swap doesn't use miles, it uses hours. and that was broken before the swap. So i cannot speak for that.
It's been sitting a few years. New wires, plugs, condenser, cap/rotor, and some sandpaper.
I need to plumb a radiator and transmission cooler before i whip it over.
I'm excited to see what I have!!