Good runs Chip. You are going to have to work on the frontend rise. Don't know what you have going on, but it may be as simple as tightening the front and rear shocks, or you may have to put some weight on the nose. And while many think it's the opposite, sometimes getting after the car harder and quicker will keep the front down.

Depending on how your cars leaves, the delay on the nitrous could be when the car has "settled" a bit and the nitrous hit "bounces" the front back in the air a little. If it leaves wheels up, carries it there and then the nitrous pushes it further up, probably going to take nose weight to fix it or figure out how to keep the fronts on the ground period, or at least closer to ground.

Ours rarely gets higher than this unless I miss the setup