The generator matrix

 1  0  0  1  1  1  X  1  1  X  1  0  0  1  1  1  0  1  1  0  1  1  0  0  1  1  0  0  X  X  X  X  0  X  X  0  1  1  0  1  1  X  1  1  0  1  1  X  X  1  1  1  0  X  1  1  1  1  0  X  1  X  0  X  0  0  X  1  1  X  0  1  1
 0  1  0  0  1 X+1  1  0  1  1 X+1  1  0  0  X X+1  1  X X+1  1  X  1  1  X  X  1  1  X  1  1  1  1  1  1  1  1  0 X+1  1  0 X+1  1  X  1  1  X  1  1  0 X+1  1  1  0  X X+1 X+1  1  1  0  X X+1  0  X  0  0  X  0  X  0  1  1 X+1  1
 0  0  1  1  1  0  1  X X+1 X+1  X  X  1 X+1  X X+1 X+1  0  1  1  1  X  0  1 X+1  0  X  1  1 X+1  1  1 X+1 X+1 X+1  1  0  0  0  X  X  X  X  X  X  0  0  0  0  X  1  1  1  1  0  0 X+1 X+1  1  1  X  0  X  X  0  0  X  1 X+1  0  0 X+1  1
 0  0  0  X  0  0  0  0  0  0  0  0  0  X  X  X  X  X  X  X  0  X  X  X  0  X  X  X  0  0  X  X  0  X  X  0  0  0  X  X  X  0  X  X  0  0  0  X  X  X  X  X  X  X  X  X  X  X  X  X  X  X  X  0  X  X  X  X  X  X  X  X  X
 0  0  0  0  X  X  0  X  0  X  0  X  X  X  X  0  0  0  X  X  0  0  0  0  X  X  X  X  X  0  X  0  X  0  X  0  X  0  X  0  X  0  0  X  0  X  0  X  0  0  X  0  X  0  X  0  0  X  0  X  X  X  0  X  0  X  0  X  0  0  X  X  0

generates a code of length 73 over Z2[X]/(X^2) who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+98x^70+52x^72+74x^74+8x^78+6x^80+6x^86+4x^88+6x^90+1x^96

The gray image is a linear code over GF(2) with n=146, k=8 and d=70.
This code was found by Heurico 1.16 in 0.105 seconds.