Make sure the secondaries aren't hanging a bit off of the idle position;

Make sure that you spray a bit of a non drying lubricant, like CRC on the
choke mechanism and secondary mechanisms.

Make sure that when you turn off the motor, even though the choke doesn't
close all the way, the bi-metal electrically heated spring. When cooling
doesn't allow the fast idle cam to go one step fast, then never heats up
enough to pull it back to the lowest point again.

If the electric choke cover is bolted, you can go one or two lines towards
the colder setting(counter clockwise) if riveted, you'll have to buy
replacement rivets and drill out the old ones, then rotate the choke coil a
bit towards colder. As mentioned before.

If the cover is keyed: File the f.cking thing after doing this. Set your
idle, when the choke opens totally, look at the fast idle cam, behind the
choke stove after accelerating the car once or twice. no need to punch it,
just moderately accelerate it to release the choke.

See if the screw is on the lowest step on the cam, this may be why you can't
get the car to idle?

I hope this helps?

Refinish King

its an adjustable vacuum secondary.
All aboard the Yankee express, next stop October.....

Please also post in the question I asked previously if it:

a vacum secondary, progressive secondary double pumper or a mechanical
secondary conversion with the gear kit?

Refinish King

the choke is wide open, that was the first thing i checked. i set the timing to
12 initial and the car was running a bit crappy i have a decent size cam. so i
went to 18 degrees. i have about 14 hg at the base of the carb with these
settings. which is what comp cams claims i should have, its the 276 xe cam.
230/236 duration @ .50  still when the car is in drive it barely idles. im in
the dark as to what exactly happened. in park its idle is around 1000. in drive
it falls to like 425-450. i don't want to leave the idle at 1500 to have the
car idle at 650 in drive.
All aboard the Yankee express, next stop October.....

make sure choke flap is wide open when car is warm

after adjusting idle make sure your timing is good my suggestions 9 to 12
BTDC in your case

"Hitman0187" .

it's possible the choke flap closed a bit on ya.

for those unaware of any of my previous posts i have a holley street avenger
carb on a small block 355. I shut the car down yesterday at the gas pump and
when i restarted it the idle was screaming at 1500 rpm and wouldn't idle down,
it was mid 80's yesterday and i was driving for a while so it had no buisness
even trying to warm up. when i hit the throttle to drop the idle it stumbled on
tip in and then only went down to 1500. in drive the idle was normal at 650. I
went home and lowered the idle screw to normal rpm and it was runnin a bit
rough. when put in to drive it would stall. anyone have any idea what might
have happened?
All aboard the Yankee express, next stop October.....