Pertronix 1381a

Just wondering if anyone ever installed one of these? This is a project car for my daughter. I heard leave the ballast resister some say get rid of it. Some say you need to run another wire others say just tie into it at the resister, it still hasn’t got here but I want to be prepared I suppose I could call the company, but maybe someone on here has done it before, the motor is a318 and I found out tonight it has a sure grip 7/1/4 which I hear is kinda rare I know it clunks a little from drive to reverse hoping it’s just u joints, thanks guys for any help.
I use to run pertronix points eliminator, kept the ballast hooked up, pretty reliable but always keep a spare cause you never know!