Off idle hesitation - solved

I’m getting an instant strong and long shot from the accelerator pump. I removed the air horn and oiled and flared the plunger and tested the check balls, it’s all operational.

A pic of the car or the carb?
The carburetor.
I have taken the air cleaner off and manually operated the throttle to observe the pump shot in operation. Sometimes there is a hesitation, most times not.
Yeah, but you're asking for our opinion, not yours. lol Since we have no pictures and preferably a video to see anything, I'm sticking with classic problems to classic symptoms. lol