AVS2 Tuning Woes...

so, correct me if i am wrong, but it seems to me if the car is cold the edelbrocks have a lock out that prevents the secondary's opening up unless the car is warmed up. I was having an issue with a holley not able to get it open all the way using the acc pedal , I had to install a longer throttle cable. They can easily be found online. I tired moving the cable closer to the shaft but it did not solve my issue. the longer throttle cable did
I am too runing a avs2, i have not really done any real tuning with it yet, just have not gotten to it. It on a 408 and it seems like a good carb so far.