Help with idle rpm and carb on 340

See if the cable is hung up, disconect and check it out!
See if it idles better then. I have an airgap and had this issue.


Ok so I have finally got my dart back on the road as now I'm down to tuning carb, idle, etc. the problem I have right now is with my street avenger 670 carb, electric choke , vacuum secondaries, it will not idle at all when it's cold and when warm won't idle any lower than 1000 rpm.

Details
-manual car
- motor is 340, .030 over, rpm air gap intake , x heads, comp springs , comp nostalgia cam lift .484/.484 duration 284/291,timing is set at 30 deg, Doug's headers.
- vacuum is pulling at 1000 rpm around 13-14 lbs
-I've up the jets to 70/72 and power valve was 6.5 and changed to 5.5. (Either one idle was same)
-electronic set up orange box and distributor has no vacuum advance was rebuilt and lighter springs

I did slap on my buddies elderbrock performer 750, just rebuilt it back to stock , seem to idle better cold but it would not idle under 1300 rpm

Seems to run pretty good once it's warm but still little hesitation and the plugs are still on the lean side, when I jet up next step the plugs go black!!