The floorpan may be constructed in more than one section. For its entire length, the floorpan shall consist of substantially flat panel(s) in plane(s) approximately parallel to the ground plane (not counting chassis “rake”). In
addition, “stepped” or sloped floorpans ahead of the dash hoop are permitted, however, the maximum vertical distance from the point of attachment to the base of the main hoop to the point of attachment at the front bulkhead shall be 25.4mm (1 inch).
This is more then 25.4 mm...prob built before the new rule?