Edelbrock setup for dual quad

Stop trying to run it and tune anything until you have all the vacuum leaks plugged. It won’t do a damn thing. And whoever told you to run the mixture screws all the way in is wrong. Bottom them all lightly and then turn them all out 1 turn as a starting point. Closing the choke on the secondary carb won’t do anything if you have the curb idle screw backed all the way out either. You’re getting there.