I think I need to upgrade my fuel pump. Because when I get on it with the Smarty programs with the added timing it rattles pretty good. I just loaded the DR11 and it still does the rattle with the added timing. And my fuel rail is shimmed also. So this is what I think is going on is that the fuel pressure at my gauge is about 11psi at idle and when it get on it pretty good it goes down to about 6 psi its hard to watch it but I been watching it close now it mite go as low as 5psi but it's hard to watch the gauge and drive. I think this is why I get the timing rattle on the Smarty programs with the added timing. I think it's time for a fuel pump upgrade like Airdog or Fass fuel. What do all of you think and what kind of fuel pressure do you all see at your guage when your getting on it pretty good?