Ignition Timing
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 1990 Pontiac Firebird, 1990 Oldsmobile Custom Cruiser, 1990 Chevrolet Corvette, 1990 Chevrolet Caprice, and 1990 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
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 | ||||
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