I have had some distributor advance springs made up that wont fully advance in low RPM like the MP or Mr. G springs do. for use in point and electronic distributors 59-77. Very similar to the blue dot springs I had but better performance. They fit Dual point, single point and Mopar electronic distributors. Took a few years to figure these out. Asking $45 first set shipped lower 48. $40 each after that. Any questions just ask
