I am going to Z-MAX this weekend to watch the big boy's play so my brother is going to run the dragster. He is trying it at 5.0 psi the first pass and then he is moving the two-step down then up 400 rpm, after it is as good as its going to be I told him to tighten the coilover 2 clicks at a time to find what the car wants. He is testing Friday and racing Saterday.