I have to agree with the chorus here. On a carburetor, "tip-in" is the point in time at which the throttle plates start to move away from their barrel walls and expose the idle circuit more fully and completely as a prelude to initial acceleration when in gear. Tip In is not meant to be an abrupt event; totally to the contrary. A hard tip in, and I just finished solving the mystery of that on my own vehicle is both a nuisance and dangerous because you can't sense or feel when the car is about to move; with a hard tip in it is an all or nothing event. If you aren't feeling throttle cable movement then it would seem to me that all is well in your carburetor's world. What you might ought to be feeling is that whack in the pants, the push back into the depths of the seat, and the Hooom-ph of massive amounts of air being ingested by your engine that should occur as an immediate consequence of WOT. The a** end of the car will drop or squat down and the front end will get light as torque is applied by the engine through the transmission to the rear end and "weight" is transferred from front to back.
If you think that you are not getting a Wide Open Throttle situation, then a visit to the carb throttle cable and the mounting bracket for it is definitely in order. That comment above about needing the correct bracket is totally valid. That was another item on the list of things to visit that I went through to get my 700R4 and my FI-Tech 400 to learn to play nice together.
Nick