The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  4  2  2  0  0  0  4  4  1  2  2  1  0  1  0  1
 0  2  0  0  0  2  6  2  0  0  4  2  4  2  6  2  2  0  6  2  4  2  2  6  2  2  4  0  0  4  2  4  2  4  2  2  2  2  6  4  2
 0  0  2  0  2  2  6  0  0  4  2  2  2  6  4  0  0  0  2  2  0  4  4  0  4  4  0  6  0  2  6  2  4  4  6  4  6  6  4  4  6
 0  0  0  2  2  0  6  2  4  2  2  0  4  6  0  2  6  0  4  6  2  0  2  6  2  6  2  0  2  0  6  2  6  4  0  6  4  2  0  2  2
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  4  0  0  0  4  0  4  4  4  0  4  4  4  4  4  4  4  4  4  0  0  0  0  0  4  0
 0  0  0  0  0  4  0  4  4  0  4  4  0  4  4  4  0  0  4  0  4  0  0  0  4  0  0  4  0  0  0  4  4  0  4  4  0  4  0  4  4
 0  0  0  0  0  0  4  4  0  4  4  4  0  4  4  0  4  4  4  4  4  4  4  0  0  0  0  0  4  4  4  4  0  0  4  0  0  0  0  4  4

generates a code of length 41 over Z8 who´s minimum homogenous weight is 34.

Homogenous weight enumerator: w(x)=1x^0+163x^34+24x^35+368x^36+60x^37+472x^38+248x^39+566x^40+364x^41+571x^42+232x^43+445x^44+84x^45+265x^46+8x^47+138x^48+4x^49+62x^50+15x^52+3x^54+3x^56

The gray image is a code over GF(2) with n=164, k=12 and d=68.
This code was found by Heurico 1.16 in 1.06 seconds.