Carb Questions..HELP!

Well bought molley 750 , but switching on Monday to a 670 street avenger Holley . The Carter AVS I had would bog off the line , and it had been rebuilt and set up a few times . By Tuesday I'll let you know how it goes . Basically I have the same set up , 340 40 over , 10.5:1 forged pistons 274 comp cam , mild port on the heads and air gap intake .

Did anyone ever try the air valve adjustment on it? I have ran quite a few AVS carbs in different applications and never had any bog issues as long as the secondary air valve was adjusted correctly.