[got mung]

Everything works great, it's been dyno'd, driven for a couple days, and on it's first track day, everything goes wrong. I'm going down the back stretch and my headers decide to seperate at the collector and I lose all power instantly. On my way back to the pit area, I notice that my 2d system is still running with my car at an idle. I shut the car off and it shuts off, I turn it on acc and everything fires up again. My dds2 shows that there isn't any flow while it's running. Oh ya, and the priming pump is also running all the time. What broke and how do I fix it?