Tuning a Proform/Holley carb, what parts and tools?

Timing right now is 19/33 in by 3k, no vac adv hooked up yet, just FYI...

Also, I noticed while checking the t-port the slots are elongated even with the idle screw backed all the way out. Does that suggest the throttle blades are clocked wrong or not closing all the way? They looked parallel to the base...
I' m going to have to pull the carb again and go back over it. Probably tomorrow afternoon as there is a good local show in the morning I don't want to miss.