Engine chugging when I turn it off carbeurator issues?

Question

I just installed an edelbrock carbeurator on my 85 trans am. The fast idle wont shut off and when i adjust it, it makes minimal difference. Also being that it idles too high, when i shut it off, it will keep chugging and for the finale it will shoot fuel out of the jets. What could cause this.
It runs fine. And when i take it out for a test run it seems to drive fine other then the idle being far too high.
Id call edelbrock but the service line is closed on weekends (go figure) and i need my car for tomorrow.

Any help would be greatly appreciated.
Thanks

Answer 1

your mix screws will never have any effect if your not down into the idle circuit! now there are 2 reasons you wont be in your idle circuit. #1 curb idle adjustment to high. #2 choke not set right, and its running on the hich idle and not shutting off.

do you have the ac kicker solenoid? if so, it may be similar to a ford setup. they used this solenoid to adjust curb idle and when you shut it off, it closes the throttle butterfly acting as an anti dieseling solenoid.

Answer 2

I know your problem. I have experienced it many times and it took me days to figure it out after adjusting every thing I possibly could. The problem is your throttle return spring isnt pulling the throttle closed. Replace it with a stronger one. At any Auto parts stores they sell a set of return springs for under $10. I guarantee thats your problem if you've adjusted everything.

Answer 3

check your timing