3sgte distrbutor ,why two pickups? please help!

danst165

New member
i am installing a MSD 6btm ignition control on my st165, and don"t understand why there are 2 pickup coils in the distributor, with two different size protrusions from the rotor. i could understand if the rotor had identical protrusions at 180 degrees, but this doesn"t make sense to me. anyway i am trying to run the ignition control directly off the pickups but don't know if both coils will give identical signals. please help
 
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