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Ignition Timing

NOTE: For timing procedures, see the appropriate D - "Engine Type" ADJUSTMENTS article in this section.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Man. Trans. Auto. Trans.
4.5L (VIN 3) N/A (1) 10
5.0L (VIN E) N/A (2) 6 @ 400
5.0L (VIN F) 6 @ 700 (2) 6 @ 600
5.0L (VIN Y) N/A 20 @ 1100
5.7L (VIN 7) N/A (2) 6 @ 600
5.7L (VIN 8) 6 @ 450 (2) 6 @ 400
(1) Set timing below 800 RPM in Park.
(2) With Auto. Trans. in Drive.