Squirting fuel into the carb is not priming it.
On the Edel [ & Carter AFB/AVS carbs ], you prime the carb by filling the float bowls full of fuel.
You do this by adding fuel through the atmospheric vents. There is one for each float bowl.
The vents are the openings just next to the met rod piston covers.
Use a syringe or other means to add fuel until you see fuel drip from primary booster nozzle. Then do other side.
Engine is now ready to start.