update
changed the pump and fuel lines (there were some bubbles on return line) no difference.
Then I realized I don't really know what the actual reading was, since the guy who tested it said ''it should still run in summer'' and that was all I wanted to hear. Measure of course was in BAR instead psi.
3x15, 1x13 bar, that is around 220 and 190 psi.
This was dry, cold engine measure so it really is a bit higher warm, but still, definitely, this engine in not healthy enough to eat 2BAR of boost. I am shocked it still started on 2,3rd crank.
Now I am cursing myself badly I didn't pressure him to repeat the test wet, with squirt of oil, so at least I would know if I have problem in the bottom or the head.
Will report here with any updates, but between school, work and zero'd bank account I am definitely giving this whole thing a rest for at least another (horrible) month.
I will be searching for cheap NA engine, then I am slapping my turbo on it and turning boost down to 1bar and IP back to stock. Frankensteining will have to wait.
But before that I will definitely be buying compression tester. I still can't believe I bough lemon engine, and all could be prevented with simple 50buck tool.
Lesson from this? Never buying engine or car without compression test in advance, never f#&%n again.
Thank you all once more.