355, 9.6-1 comp, AFR 195 heads, Big Mutha Thumpr roller cam, 780 Holley carb. Off idle throttle response is not what I think it should be. It runs fine, but I don't know how to explain it, the initial throttle response is hollow, not crisp. Once you get beyond that it runs fine. No stumble accelerating from anything but idle. I've got a 31 squirter in it and it squirts immediately upon moving the linkage. It's a four speed and you deal with this everytime you take off from a stop. The secondary throttle plates are positioned properly to the transition slots. That made a huge difference in the idle quality issue I was having. I drilled two 1/16" holes in the primary blades, but the blades are still above the transition slots on the primary side. Should I open the holes up to get the blades positioned closer to the transition slots? The car runs great, just this little annoyance off idle.