Pelican Parts Forums - Starts but won't idle/run

Hi Guys

First off all thanks to join your group. I have recently bought a 1977 porsche 924 aut. with only 33.000 km. on the clock. The car was going from Germany to Denmark (where I am located in 1986 and have then not being on the road since. (started occasionally) I have purchased it a month ago because I want to get it on the road again together with my son.
I have drained the fuel tank, put on a new fuel pump and filters, new spark plugs.

It starts fine but can't idle or keep going. I have check the fuel pressure and the system pressure are fine 4.8 but the control pressure are way to high 4.6 where it could be 1.5 cold, according to my Haynes manual.

Someone of you have an idea how to proceed troubleshooting ?

Thanks

René