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Choke RPMs to high when cold???

Discussion in 'The Garage' started by GM Man, May 7, 2003.

  1. GM Man

    GM Man 1/2 ton status

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    When I fire up my Jimmy in the morning the choke starts the RPMs off at 1300. After a minute it jumps up to 1500 RPMs. Is this ok for a SBC when its cold? The carb is a Edelbrock 1406.
     
  2. Hossbaby50

    Hossbaby50 3/4 ton status

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    Mine on my Qjet usually runs about 1000-1100 startup and climbs up to around 1300-1400 as it warms up.
     
  3. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Take the air cleaner off. Standing infront of the truck . Looking at the carb on the left side is the choke. Up against the body of the carb is the high idle cam and a stop screw. counter clockwise will lower you RPM at high idle it doesn't take much adjustment. 1/8 of a turn may be plenty. I usualy adjust it down to about 950-1000 when warmed before tapping the throttle to drop the choke.
     
  4. GM Man

    GM Man 1/2 ton status

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    Cool, thanks guys for your inputs. I'll drop the RPMs.
     

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