Torqueing Head Bolts

[Michael G Hering <MGHering@world.std.com>]

        I just bought a Craftsman Torque wrench to use for re-tourquing 
my head bolts (since this is a brand new-rebuilt engine) and the 
instructions say to always loosten a bolt fully before you re-tourque 
it.  Is this true for head bolts as well?

                                                        Thanks,


                                                        Michael Hering
                                                        '67 TR4A IRS