Hot Start Issue Choke stuck?

Hey folks,
New member. I fired up my 74 duster 56k miles, for the first time yesterday. It would run amazing then stall and not want to start when warming up (gauge just reading 120 degrees). Eventually I noticed the choke still engaged slightly, I fiddled to get it open all the way and it would fire up.
I was using a gallon gas tank with a hose tossed in it, since I ordered a new tank that won't get here till Monday. I know the second owner replaced lots of parts when their grandpa died, but not the tank. It got rear ended in the 80s and parked till 2015,then they tuned it up then sat till I got it. My buddy drove it down the block then said the bad gas clogged it up.
They replaced the VR, ignition module, fuel pump, alternator, coil, distributor, plugs, wires, starter.... I checked for spark when it was stalled and hot and got it.
I replaced the VR as the gauge was wavering and reading high, and the ignition module as my buddy thought it was likely bad. He thought it was going to have some ignition stuff to work through. He bought it did a burnout and parked it for the last 6 months or so.
Is there an easy way to adjust the choke thermostat to get it to open earlier on a Carter 2 barrel? Is it possible that some gunk got past the fuel filter, do I need to rebuild the carb after the bad gas tank?
Sorry didn't get a picture without the air cleaner on. I'm way more of a diesel guy and have limited experience with carbs so all help is appreciated.
Thanks in advance,
Adam
BarrelIMG_20181111_153659019.jpg IMG_20181111_154850590.jpg