Does your state require that the vehicle be smogged? If not a lot 
          of that stuff can be 
removed and would be surprised at how well 
          the car runs. Have had this problem on several 
of my 80-up AMCs, 
          mostly Eagles that would stumble or die at stops, sometimes 
          turns.
Several things cured it, depending on the car! The best 
          carbs I have used for later model 
stuff is Tomco brand, they are 
          no nonsense. So I request them if I have to replace the 
          
Carter.
Another thing is on one of the Jeep sites, they 
          having same problem. With all the 
different crap blends of gas all 
          over US, this also causes problems, here with two of mine 
they 
          kept getting this yellowish buildup around the idle jets. If you look 
          directly 
straight down into carb you will see them, they stick out 
          like this \ / and a good blast 
of carb cleaner once a month kept 
          them clean, and open and no stuttering or stalling, this 
mostly 
          happened on the 88 Eagles it seemed.
On my 82 Eagle, I tore out 
          all the emissions stuff, there was miles of it, plugged stuff 
up, 
          tossed others, and disconnected anything emissions. Then retuned it, 
          moving idle 
slightly up. The car turned from wimp to stump puller 
          and has 210,000 miles on it now, no 
smoke and driven 
          heavily.
On some of these, yes, you will have buildup ad 
          pressure inside tank, especially during 
summer it seems. The cars 
          were not made for the crap gas, ethanol, e85, blends ands what 
not 
          now on market. You hear repeatedly that you should fill up your tank 
          at night, not 
during day as you won't get all you pay for due to 
          evaporation, same applies here with 
tank.
It was 99 here 
          today, and when I went to put gas in the 72 Ambassador, the pressure 
          was 
quite high in it a big whhsh! sound, usually I take the 
          unvented cap off slowly but forgot 
with kids 
          hollering.
Some of above may or may not help though, but worth 
          trying perhaps.
Eddie Stakes
713.464.8825
eddiestakes@xxxxxxxxxxxxxxxxxxxxwww.planethoustonamx.com