Tune-up

Ah, I dont have one of those (see picture) so it all 'Greek' to me. I would get them points changed out. Most likely they have corrosion on the contacts. THAT will make that car run 'not so good', hope you have small arms and hands. My forearm is 17 inches around and I have some big mitts so when I gotta get near that distributor I get my son to do the nasty and I direct him!!
Chas.