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I finally got the noted fuel pressure regulator as directed, installed it and started trying to figure out how to set/adjust it. Zero info/instructions came with the regulator. Since it only allows up to 5psi fuel pressure, I started running the adjustment screw inward until the pressure measured 4 psi twice. So, should be good to go - no more overpressure and engine should idle. Not so.

It now starts and runs strong and will idle OK if I set the RPMs up, but have not been able to work the idle mixture screws and idle speed adjuster down to a slow smooth idle - because the engine stops running after about 30 seconds - even at high idle. It simply shuts off as if it has run out of fuel, which I think is happening. When I re-start, there seems to no flooded effect - no smoke from the pipes.

So far, the smoothest idle I have gotten is with the mixture screws about 1 full turn outward from seated. Would 1 turn open seem to be normal for a Carter AFB at 8,000 ft. elevation?

Unless the fuel pump has gone wacky and is putting out 10 psi and then later not putting out enough fuel to run the engine, I am near stumped with my first ever CAFB.

Some of you folks are very experienced and wise on these issues. I will appreciate any info and insight. Thanks.