If you can get hold of a virgin (non-bored) 400 block then I would build a 406....which is a .030 over 400. A lot simpler to build for a new guy and a good running 406 will outrun a good running 383.
A biased story means that you are supporting one side of an issue and twisting the facts to support that side. Unbiased means you are telling the facts, and reporting both sides positions on an issue, allowing viewers to make an informed choice. It is possible for an individual to be 99% unbiased if being unbiased is a value you hold dearly. But most people would rather present a biased story.
1 Bias and Confounding. . 2  Bias. is a systematic error in a study and cannot be fixed. . 3  Confounding may lead to errors in the conclusion of a study, but, when confounding variables are known, the effect may. be fixed.