Chevrolet Nova/ChevyII 1962-1979

1974 Vehicles

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Refer to the opening notes under the previous "1973" section; they also apply here.

6-250 ENGINES



Adjust the idle stop solenoid hex nut for 800 rpm on manual transmission models or 600 rpm on automatics (in Drive).

8-350 (2 BBL) ENGINES



  1. Turn air conditioning off, if so equipped. Adjust the idle stop solenoid screw for 900 rpm on manual transmission models or 600 rpm on automatics (in Drive).
  2.  
  3. De-energize the solenoid and adjust the carburetor idle cam screw (on low step of cam) for 450 rpm.
  4.  

8-350 (4 BBL) ENGINES



  1. Turn air conditioning off, if so equipped. Adjust the idle stop solenoid screw for 900 rpm on manual transmission models or 600 rpm on automatics (in Drive).
  2.  
  3. Connect the distributor vacuum hose. Position the fast idle cam follower on the top step of the fast idle cam and adjust the fast idle speed to 1,300 rpm on manual transmission models or 1,600 rpm on automatics (in Park).
  4.  

 
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