What do you mean "the coil side?" Here is a basic diagram, 4 pin?
Also NOTICE the specific hookup on the pickup........It must be so, or the relationship between the trigger and rotor will be "off" causing "rotor phasing" problems. You can Google that
With key in "run" or in "start" there should be battery voltage at coil+ and at the indicated terminal on the HEI (top left)
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