Holley 4779 750dp question

Okay let me tell you guys about my engine

mopar performance distributer with chrome box mechanical advanced, fully advanced at 36 degrees
-340 bored 30 over
-60405 lunati cam 242/252 @50 lift 533/552
-flat top forged pistons with 10:1 compression
-eddy rpm heads
-eddy air gap dual plan intake
-trans is 727 with 3500 stall
-8 3/4 rear with 3.91

the car has the 750dp carb on it as we speak and I bought it new out of the box. But yes at about 10% throttle taking off it sputters and also has a slight miss at a consistent cruise of about 2200rpm or so. Motor pulls 10 inches of vacuum at idle with idle screws 1 turn out on all 4 corners. need anymore info please let me know. There is a lot of knowledge on here so anything you guys say will help me out in some way