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Home >> GMC >> 1984 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - HEI (Federal) >> Wiring Diagrams

Wiring Diagrams

Fig 1: Delco-Remy HEI System Schematic Module terminal letters may vary by model.

G17007

Fig 2: Electronic Spark Control (ESC) HEI System Schematic

G50D00532

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