So I went to the mechanic today.
He immediately noticed that small return pipe from injectors rail to pump was hardened up and moving freely even with the clamp on. So replaced that small pipe.
Also replaced the main rubber hoses to and from fuel tank, as the old ones were not good...
So few months back I got my 3B engine overhauled. It was running like a beast just fine but since last few days I feel like it suddenly don't have the same pick up.
Accelarator reaponse feels delayed when i need quick boost in rock climbing
Take off is very slow but runs fine...