I have done this for a living for over 30 years.
My customer cars and my personal cars' performance speak for themselves.
I am human and have made mistakes.
I DON'T answer everyones automotive questions on internet threads then backpedal when I was clearly wrong or didn't use my head.
I don't consider myself a regular "know it all".
And finally, I don't care what you think, because I have experienced first-hand your lack of knowledge- at least in engine assembly.
You seem to have convinced yourself that because you can look up textbook answers to technical questions, that you can transfer that to your hands and assemble an engine correctly.
I have always believed that if you give someone enough rope, well......
unfortunately you are not the only one that got hanged.