Choke thermostat /RAGE

This engine have a egr valve or other emissions components that could alter the fuel air mixture ?
The 3 cases of a off idle stumble/stall like yoy describe that come to mind... Failed accerator pump. If that initial shot of fuel isn't there...
Venturi bleed tubes dropped out of where they were staked in the pot metal. This one depends on how the car is built since not all are the same.
Small piece of crap holding the egr valve open just a little.
There are/were all sorts of NOX valves and other emissions components that casued a host of various fault conditions. Good luck.