I cut away 7mm of the rear of the cone and got a EGT of 710 at 160k. Then i cut away 3mm more and got 680 egt. Much better but a total of 10mm is cut away. This will decrease thrust alot. I will try to measure thrust in a few days to see how it is now.

Also i use a Orbit fuel pump now and orbit fuel valve. Much better A test plane is being build to test the engine in flight.