idle adjustment on a holley

[bryguy00b]

i have a holley carb but i dont know what one...how do i adjust the idle? i want to bring it down cause its to high...is there some screw you mess with on it?

 

[Lonnie]

The idle speed screw is behind the throttle linkage on the Dr. side pointing up towards the windshield. Loosen it slightly & your idle should come down. If it doesn't check to see if the fast idle cam is not holding the idle speed up. This is on the pass side behind the choke housing, but should only work when the choke is closed or partially closed. If this is contacting its stop with the engine at operating temperature, the choke needs adjusted. If this still isn't the cause, repost & I can give you some more ideas.

 

[bryguy00b]

ok i gotcha...one more question...should the choke come one everytime you start the truck...the light does anyway...and one thing i noticed is when i stop..like at a stop sign..the choke will close and open a bit..liek ill slow down..and it will riv up just a tiny tiny bit liek a couple times...then stop..

 

[Lonnie]

Basically you should see the choke light when you start the truck. The electric choke needs to see power whenever the key is in the on position. The choke should be wide open after approx 10-15 minutes of running. The choke should be as loose as possible & still allow smooth idle when cold. Too tight & it will waste fuel. Also the secondaries will not open when the choke is partially closed.

 

[bryguy00b]

ok question one...secondarys??
question two...what do you mean it will waste fual when its tight? you mean when it stays closed a little and pumps more gas in?

 

[bryguy00b]

well i think it may be my choke more than anthing else..how do i adjust it?

 

[bryguy00b]

ttt

 

[84_Chevy_K10]

Sure you don't have a vacuum leak?

 

[bryguy00b]

i have no clue...why what would that cuase it to do?