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Ignition Timing

  1. Timing is set by lining up a milled notch in vibration dampener with a graduated degree scale located on timing case cover. A socket cast into the timing case cover is used with special magnetic timing probe equipment.
  2. Disconnect and plug vacuum hose at distributor. Connect a tachometer and ignition timing light. If light has an advance control feature, turn control to "OFF" position.
  3. Start engine and adjust to idle speed of 500 RPM with solenoid disconnected. Adjust timing to specifications by loosening distributor hold down clamp and turning distributor. Recheck timing after distributor hold down is tightened.
    IGNITION TIMING SPECIFICATIONS (DEGREES BTDC)

    Application Man. Trans. Auto. Trans.
    1975 Models
      304"  5  5 
      360" & 401"  2.5  2.5 
    1976 Models
      304"
        Federal 5 10
        Calif. 5 5
      360" & 401" 
        Federal 5 8
        Calif. 5 5
    1977-78 Models
      304"
        Federal 5 10
        Calif. 5 5
        High Alt. 5 10
      360" 5 8
      401" 8
    1979 Models
      304"
        Federal 5 8
        Calif. 5  
      360" 8 8
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