Exactly. Rev-Pol I think. I think you could tie the points together and use just one coil, but you still had the problem of carefully adusting points. Those were the "4 lobe" distributors. I was never a real big fan of Mallory, but by the time I was interested in better ignition, the 70 440-6 had already come with a factory cast iron dual point, and I also scored a factory hemi tach drive which I used. I paid 20--25 bucks for it!!! I screwed around with an Accel as well. They of course had adjustable mechanical advance. I also messed with both Delta and SST CDI ignition systems.