I put pertronix in my mustang, it lasted about 10 minutes before it blew the back out of the module. I put one in my truck it ran for about 6 months, and that is the only time in 30 years my truck hasn't made it home. I asked if anyone else has had problems similar to mine on this forum. I got 10 replies, 4 were of the negative variety, similar to mine, 6 were positive. There was a similar response on a couple of other forums as well. It seems they are about 50/50 (10 plus my 2 bad experience, is 6 out of 12) I have the brand new replacement they sent me in the garage, but I can't bring myself to install it, the points will never be as much trouble as that one day in the rain and wind alongside the road putting the points back in.