Omega A runs like a sack of nuts

Hello. Omega A, Bj 93, petrol C20NE. Since last Friday my box has been running worse and worse … At first it jumped on but then ran like on 3 cylinders. When the Bock got warm, the car ran almost impeccable. In idle run, apparently, a cylinder dropped off every now and then. On Saturday, the (warm) buck ran out in the city during the ride. Only after 2min he jumped again and then ran ok. This morning he jumped on and went off. Then he jumped on but very badly. The MKL is out. Totzdem read out nothing in the memory. Candles and fuel filter changed. Fuel hose pulled off at the gallery and torpedoed for about 6 sec. It comes but fuel only about 1/3 liter. Normal ? Besides, I fell on that I had no pressure on the system when pulling off the fuel hose. Fuel hose again. Started. After that, the bock ran tip-top for two minutes and at once in the Lee Rlauf started it again as if one or two cylinders were exposed. Ignition light gun on each cylinder and I have dropouts on each cylinder. Hmmm …. Do I have dropouts because I don’t get fuel or too little pressure on the system or do I have ignition dropouts because the ignition distributor/cap is fertisch? The distributor sits on the camshaft at the spray wall and is secured with 3 Torx screws. How can I get there? There is no space. With a nut and 1/4″ ratchet goes d a nothing. Can the distributor cap be pulled off when the screw is loose?