July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
General Specifications
GENERAL SPECIFICATIONS
Cylinder Head Deck Surface Flatness Transverse 0.030 mm (0.0012 in) Cylinder Head Deck Surface Flatness Longitude 0.050 mm (0.002 in) Cylinder Head Deck Surface Flatness Overall 0.08 mm (0.0031 in)