HOLLEY 3310 750 REBUILD HELP

Did it just start doing this? Anything change or happen? Is you accelerator pump working and adjusted properly?
About 2 yrs ago ethanol gas dried in the system, I replaced everything but the carb, that I took apart and cleaned, I replaced the pump daiphram and power valve.Cant remember what size, the original wasnt marked. I probably got something adjusted wrong. What's the adjustment procedure for the pump? Right now it's has slight pressure on the arm and the spring is almost bound at idle.