Want to improve ignition....

had pertronix in our 69 dart for the 7 or 8 years we owned it and never had an issue. and that orange box (one made after the 80's) has a horrible reputation of shitting out pretty fast.
I have had my Pertronix in for a few years. Not so much as a hick-up. Fairly inexpensive and easy to install. A simple solution.