[ael911]

It's nice to see this old thread resurrected again...

BK911, I had the same thing happen when I originally hooked up the PMO regulator. With the flow coming in and going out, the pressure was showing at about 9-12 psi no matter what I did. Dialing the adjustment screw down, it did change the pressure down to about 6 pounds, which was still too high. It also put a huge load on the fuel pump and the fuel pump began to scream. With the inlet line going into a bucket and no return, the CIS fuel pump could fill my 5-gallon bucket in about 2 minutes. It pushed a lot of fuel out and very quickly. After much thinking, I don't believe there is a kink in the system and it's just the high pressure output on the fuel pump. Steve Weiner offered to get me a 914-6 fuel pump which is nearly identical to the Bosch CIS fuel pump, with the exception that it puts out way less pressure. It's the only other fuel pump that runs a recirculatory system and not a dead head like Holley or Piersberg (sp?). But the drawback was the 914-6 pump was very expensive and had to be sent from the mother land. So I decided to go with a pressure bypass and used the PMO regulator only as a diverter and a gauge.

Thanks for your input and I will also replace the clamps..

Andy