I believe Chrysler used two different mags in these motors, maybe Prestolite and Wico, as there are two different points and condenser sets listed for the 55’s depending. Another forum suggests the condensers should be in the 0.16 – 0.20 uF range. As condensers age, the uF rating goes higher so yours would be way out of spec if 0.18 +/- is what they were originally. While the uF rating is important to protect the points from excessive arcing and pitting, what’s more important is if they are leaking internally or not. A Merc O Tronic ignition tester or a cap tester used in electronics testing can do this test.
