^^^^ Standard practice now, with most modern engines.
Threads must be scrupulously cleaned (sometimes oiled as well!)
a very low torque-wrench setting to "nip" them down equally, then tighten in the correct order in several stages of "x-degrees "
total tightening by degrees is usually under one turn and one often feels the bolt "give" on the final bit....this deliberately uses the fastener's elasticity to apply the correct clamping force, the bolts must be discarded and a new set used, every time they're removed.
The days of "dog it up as tight as you can" are well and truly past.
as a generalisation, "Tight enough to be secure and firm, not so tight as to strip/deform threads/ work/fastener. will get you by.