I believe we could follow the example of the diesel world on a lot of things. Now a common rail direct injection pickups such as a Cummins actually run 28,000 psi. Early on a basic injector mod was to have them extruded honed or just replace the nozzles. Then company's like industrial injection began rebuilding Bosch cp3 pumps to flow more fuel and a bit more pressure to stop hpr psi from dropping to low. Then came the addition of a second hpfp. It seems we are all goin through the same growing pains.
I found a company that was warming over Audi's hpfp. So they may be the direction we could go. I forgot there website though.
This seems to be a problem that is comin to a head as more and more high performance motors are goin to direct injection. The best thing for us is that GM went with DI in the new LT1 motor in the corvette. So soon every performance company will take this problem seriously.
