lean burn

Hello everyone,
fortrucksonly sent me over with my question. I have a 1981 stepside with a slant six. I want to remove all the lean burn wiring and there telling me i have to change the distributer, what all is involved with this swap and is there anything that might be a problem? I feel confident I can do this as I've worked on mopes my whole life. I know there's still active wiring going to the air cleaner as i unhooked it and truck wouldn't start.
Thanks for everything!!!