1985 toyota pickup.22r,automatic trans,2 barrel carb,ca smog. rough idle until engine hits thermostat.passes smog.all vacume lines fine,and zip tied.

I don't think your engine is a 22R-E as the E denotes electronic fuel ejection. For 1980 it should be just a 22R. I would not suggest slapping on another carb without expecting more work than just hooking up the original vacuum lines. Some lines you could cap off but others would need the vacuum and rerouting. There is plenty of info in the following blog on removing smog devices and extra vacuum lines here:
http://www.yotatech.com/f114/de-smogging-early-22r-205845/
There are also plenty of pictures and diagrams for your engine. Making a trip to your local junkyard might find you a 22R with a carb still attached but it's slim these days. I know this question is from January but if it's too late to help you than maybe it can help some one else.

repost with the spec differences beween the two engines Im a bit foggy here..Im thinkin one had or has intake restrictor plates under the intake for not letting hot gasses enter under the carb mount...

Spark plugs could use replacing.

Check the catalytic convertor,they will plug up and decrease your power due to the fact that the exhaust can't get out as fast as you are trying to put it in.Let me know how you make out.

possible check vacume hoses if its hookup properlly

sounds like the same problem I had with my 1985. I have found that when the carborator goes bad. It gets an internal vacume leak that can,t be fixed. I wen,t through 9 rebuilt ones that all had the same problem. put on a aftermarket weber carb & has ran fine for the last 7 years.

Fill the tank up but do not top off.

Ran the trunk for 15-20 minutes on the highway and recheck the fuel surge condition at 2500 rpm.

If it stop surging then you has a weak fuel pump.

Change the fuel filter will also help.

Also check the fast idle setting.
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If everything checks out then set a smog check appointment in the EARLY MORNING.

you can take apart the top section and blow out the small passage that's bellow the throttle plate.

if it is a carburated engine it is probably the a.a.p. diaphragm in the carb. if you remove the air cleaner and look on the side of the carb that is towards the valve cover near the front yow will see a vacuum hose going to a cover that is fastened with 3 screws. if you pull the vacuum line off you will see that there is probably fuel being sucked into the line due to the leaking diaphragm. the vacuum source is temp controlled and cuts off when warm. but when cold sucks fuel directly into the intake. remove the 3 screws to replace the diaphragm, being carefull of the spring. good luck!

When the engine is running ragged, place your hand over the opening of the carburator. If the idle smooths out, you have a vacuum leak somewhere on the intake system; it could be the base gasket for the carb, the intake manifold gasket, or a broken vacuum line, or a combination of that. What you have is too much air getting into the engine, but the air is not going thru the carb. Please check for vacuum leaks, you can use a can of carb cleaner, spray the intake manifold, if the idle smooths up, that would be a good place to start.