by Matt Hagan Thu Dec 06, 2012 11:52 amMy idle is too fast, how do you adjust it. 307 two barrel. 
3 posters
Idle running fast how do you adjust
Matt Hagan- Number of posts : 48
Location : East Peoria, IL
Registration date : 2008-05-28
RodStRace- Number of posts : 3046
Location : Chino Valley
Registration date : 2010-01-21
First, you make sure the dwell and timing are set correctly.
Then you adjust the idle and mixture.
Idle speed is on the driver's side of the carb, mixture is at the bottom front on each side.
http://www.autozone.com/autozone/repairguides/Chevrolet-Full-size-Cars-1968-1978-Repair-Guide/Carbureted-Fuel-System/Rochester-2GC-2GV-2-Bbl-Carburetors/_/P-0900c152801db2e9
Then you adjust the idle and mixture.
Idle speed is on the driver's side of the carb, mixture is at the bottom front on each side.
http://www.autozone.com/autozone/repairguides/Chevrolet-Full-size-Cars-1968-1978-Repair-Guide/Carbureted-Fuel-System/Rochester-2GC-2GV-2-Bbl-Carburetors/_/P-0900c152801db2e9
donivan65- Governor
- Number of posts : 12220
Location : San Diego, California
Registration date : 2008-05-12
And make sure the choke is open and the fast idle cam is not activated first......
Matt Hagan- Number of posts : 48
Location : East Peoria, IL
Registration date : 2008-05-28
Thanks for the help. My van is happy again with a lower idle and a new AT vacuum modulator. My van is driving better than ever. 
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