To keep your tires planted to the ground, you need to upgrade your suspension.
Shocks control the up and down motion of both the front and back of your car. Ideally in a drag race, you want your front shocks to allow the front to rise very fast, but to come down slowly. Your rear should assist in transferring weight at first, and then push the rear end toward the ground as forward movement begins. You need adjustable shocks to do this. It would be better to have two-way adjustable shocks if you can.
Your front springs should be weight-specific. If your car is heavy, then you want a stronger front spring to assist in bringing the front of the car up. If your car is a tin can, then you can go lighter on the front springs. For a stock weight car, I would go with a 300lb front spring; for a really light car, 275lbs should be plenty. There is some debate over the rear springs. Many have gotten their best times on stock rear springs; others use what I use, V6 springs.
Lower Control Arms
LCAs are very important for several reasons. They control wheel hop -- the violent bouncing of your tires as they try to grab traction. And as weight transfers from the front to the back, the LCAs apply downward pressure to the axle housing, planting the tires and aiding in traction.
The TQ arm does a few vital things for your whole setup. 1. It (along with the LCAs) is the pushing point for your rear end. 2. It acts as a ladder system to assist in weight transfer. 3. It can affect and change the pinion angle of the driveshaft as well. If you intend to race a lot, then you want a chassis-mount torque arm, not a tranny-mount torque arm.
Rear Sway Bar
As the power of your motor is translated through your drivetrain, it create a natural torque to one side; that is, the body tries to twist to one side. A drag solid-end-link rear sway bar, will combat this effect and assist you leaving the line straight and true.
As power is sent violently to your rear, the rear end has a natural tendency to move side to side (known to some as the traction shimmy). Your pan-hard bar combats this. If you get an adjustable one, then you can also use it to center your rear end.