You just unhook and remove electronic ignition distributor, drop points distributor in, hook black wire from distributor to ground side of coil, done. I had to open the point gap on mine to get it to run good. I also welded up advance slots to limit total timing. But out driving around engine makes a lot of power can't really tell a single point is in there. Now that I have electrical glitches all shaken out can go back to electronic.