Is it not moving fast enough or too fast?
340 are the wrong direction in almost every case on a drag car.
If it's moving too fast, control it with a good adjustable shock. If too slow, you need to loosen up the front.
Hook and spin is a loading and unloading situation which also may directly related to proper shock control of your suspension. Tire pressure, ride height and a bunch of stuff can be the cause. Lots of times it's in the front of the car, which you appear to be addressing.