'Performance' Distributor?

Choosing an ignition system is like driving in traffic this way: do everything you can to avoid getting a DUI! It's just that the traffic kind involves getting pinched for driving while impaired by alcohol or drugs, and the ignition kind involves getting conned out of money for a scammy ignition system which, until it fails, doesn't do what is claimed. Three hunnerd and thirty-nine dollars for a Chinese knockoff distributor and HEI module…for that money I'd expect (demand) breakfast in bed the next morning!

By putting in Pertronix or doing the HEI upgrade you'll wind up with at least as good a spark as this DUI Tri-Power scam, and with better resistance to real-world conditions like (stay with me here, this gets complicated and you have to use your imagination) water splashing the distributor as you drive.