4 pump Prohopper Competition setup with competiton cylinders. Powerballs up front, italian dumps, buy prestolite solenoid blocks...throw away the solenoids and replace them with HD ford ranger starter solenoids. Parker piston style check valves, all parker fittings, Parker 21ci accumulators and Lightning Audio batteries. That's not a cheap setup...but it's the most reliable one I've ever used. I have the identical setup in my car, only I use optimas.
-aaron
www.artofnoize.com