Looking good! My favourite E7 shape.
I just fixed a similar carb issue on my D21, the idle shut off/anti-dieseling solenoid wasn't working. It wasn't working because the ECU fuse had blown, but apparently it's not uncommon for them to fail. Assuming yours has one and it runs off the key like a Nissan, you can test it by having someone turn the key from ACC to ON and see if you can hear the carb clicking. You can remove the plunger that turns off the idle fuel circuit as a temp fix, but it'll run on even worse.
Mine was running on a bit, stalling at idle, backfired heaps on deceleration, but ran fine once it had some throttle.