Look in the bowl and see if your fuel is boiling, or if the bowl is low.

When it dies is the bowl still half full?

I will be watching this, as mine sometimes die at idle.  It also started doing it at speed, but I figured out that's my GM ignition already going out.

when i get a chance ill try giving it a cleaning

I am by no means a carb guru but I want to be.  I recently went from 3RZ to carb 22r in my 4runner.  I love running carb and I am determined to figure the 22r aisan carb out.

To start with here is what I think based on my experiences:

Look at your fuel filter.  You have the nice, cheap one that's up there on the fender well.  It sounds like you have fuel so that's probably not it but I've had mine run and drive on a slightly crusty fuel filter but idle poorly like that.

I agree on making sure your choke is working.  Get your air box top cover off and start it up so you can see things.  The choke, on the passenger side should be spring loaded in the closed position when the truck is cold then slowly open and go limp as it warms up. 

I would then get into a manual and set the idle mixture and idle speed screws so you can establish a baseline there.

After setting those screws according to specs if it's still doing it then make tiny adjustments, like 1/4 turn out at a time on the idle mixture screw and 1/8 turn on the idle speed and see if it will idle.  Give the throttle a blip with your had as you make the adjustments while it's running.

Once you get it going keep adjusting to find it's happy place. There is nothing wrong with a 1,200 rpm idle with the advance hooked up.

That reminds me...  Is your timing set properly? Can't tell in the pic but it looks like it might be a little retarded. Might try advancing like 2 degrees and see if that helps.

I think I remember seeing that awhile ago.  Now, you've given me something else to do while my truck is "under the knife".

Remove your vapor line and return line. Make sure both are clean ans clear.