|Year||Engine ID/VIN||Engine Displacement Liters (cc)||Spark Plug Gap (in.)||Fuel Pump (psi)||Ignition Timing (deg.)||Idle Speed (rpm)||Valve Clearance|
1NOTE: The Vehicle Emission Control Information label reflects specification changes during production and must be used if they differ from this chart.
2- Ignition timing is regulated by the Engine Control Module (ECM) and cannot be adjusted
3- Idle speed is controlled by the Engine Control Module (ECM) and cannot be adjusted