The generator matrix

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

generates a code of length 71 over Z2[X]/(X^2) who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+14x^66+82x^68+72x^70+21x^72+14x^74+18x^76+28x^78+5x^80+1x^136

The gray image is a linear code over GF(2) with n=142, k=8 and d=66.
This code was found by Heurico 1.16 in 0.07 seconds.