I think I may of popped mine.. I was running the diablo predator and puck without the stack tune. Before this, I would get 10-12k cruising pressure, 5-6k idle. Now, after a few hard runs, I am at 8k cruising and 4k idle. Truck seems to be doing ok, but the pressure is much lower at cruise and during accel.
What are the symptoms of a popped/worn valve? Who has them new/rebuilt at a decent price?

 

Just buy a rail cap for it. Do away with that relief valve.