No. Shocks are not all valved 50/50. Rule just reads as Bilstein shocks.
64. SHOCKS: All Legends Cars must use INEX ( logo
stamped Bilstein) Shocks as currently delivered by 600 Racing,
Inc. Shock numbers must be made visible at the request of an
INEX inspector. Changing or altering the shock or fluid inside is
illegal. Altering or tampering with the shocks, or competing with
same, will result in a suspension from one year (first offense) to
a lifetime ban (multiple offenses). Shocks may be turned upside
down and/or the upper part of the rear shock may be mounted
on either side (inside or outside) of the frame. Shock bumpers
are permitted (maximum 1/4” tall).
As you are not bound by INEX rules, you can use any shock you want. Mine are Carerra 1663's all around.
Here is the rule on ride heights according to INEX :
61. RIDE HEIGHT: The car may have no less than 3 ½
inches between the bottom of the frame rails (not the weld) and
the ground. This measurement is to be checked without the
driver in the car, as raced, without lifting of the car of any kind.
Your rules may differ according to what the track or sanctioning body allows.
Here is the link to the Legends Car rules:
http://www.600racing.com/documents/legends_39-69.pdfThey will not apply to you as you are not running the car under current INEX rules.
IF you choose to run your car as a Dwarf, or as something other than a Legends (INEX sanctioned) car, you will be bound to whatever rules at your track allow.
Steve