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Home >> GMC >> 1983 >> Forward Control 6.2 J, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System - HEI >> Overhaul >> Reassembly >> Scope Instructions for Primary Parade Only:

Scope Instructions for Primary Parade Only:

NOTE: Also refer to instructions furnished by scope manufacturer.
  1. Scope secondary pick-up cannot be connected on integral coils, because coil center terminal is inside distributor .
  2. Connect pick-up to No. 1 spark plug wire.
  3. Connect primary pick-up to "TACH" terminal at distributor connector plug. See Figure.
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