Choke doesn't seem to work as it should

I'm pretty sure the bog is due to the acc pump cam or shooter and just needs to be tweaked.
I've got a gauge on the carb an pressure is 7-8psi when cold and seem to drop to 3-4 when hot. I have wondered whether it was overpowering the float valve after start up. I have a regulator I can put on it. I don't know why the pressure changes over time but it is a cheap import pump but only a couple months old.