Rear spring eye contacts frame
The spring and shackle sitting on the rear, frame is good thing, on a drag car. Longer shackles will get the spring some room, if you feel you must and you should be able to get them from Napa. You want the rear of the car to be able to rise as much as possible, when the torque hits and having the situation you do is ideal. That car should hook like velcro, if the tires are up to it and the shocks are long enough!