Couple of questions and ideas.
I dig your unit, and anybody that actually goes to the drags.
Okay, what fuel pump do you have?
What rearend gear ratio and tires/slick are you running at the strip?
How did you adjust the rocker arms?
Have you attempted to adjust the 'air-valve' spring tension of the secondaries on your Q-jet?
Its alot easier to overcome a fuel systems capabilities.
Stock rear gear ratio is gonna suck unless its from a Monte SS/442 (3.73) or GN (3.42).
The 'proper' way is one full turn past 'zero lash' for something you are leaning on, try 1/4-1/2 past zero lash of the push rod.
Its a tiny straight slot screw on the passenger side, of the top cover of the Q-jet, it has a locking screw (usually and Allen screw/bolt) that holds it from underneath. That is how you adjust the secondaries coming in to soon or too late on Q-jet.