The generator matrix

 1  0  0  1  1  1  6  2  1  1  1  2  4  0  1  1  1  0  1  1  6  6  1  4  1  1  2  1  0  6  1  6  2  2  1  4  1  1  1  1  0  0
 0  1  0  0  1  5  1  1  4  7  3  4  1  1  2  2  6  1  3  1  6  1  3  1  3  6  0  4  1  6  5  1  1  1  5  0  0  1  0  7  1  1
 0  0  1  3  3  0  7  2  6  2  1  1  1  6  5  6  3  7  0  1  1  4  3  5  4  7  1  6  4  1  0  7  6  3  5  1  3  6  1  1  3  5
 0  0  0  4  0  0  4  4  4  4  4  4  0  0  0  4  4  4  4  4  0  4  0  0  0  0  0  0  4  4  4  0  0  4  0  4  0  0  4  0  0  4
 0  0  0  0  4  4  4  4  0  4  4  0  4  4  0  4  4  0  0  0  4  0  0  0  4  0  4  4  4  4  4  0  4  0  4  0  4  0  4  4  4  0

generates a code of length 42 over Z8 who´s minimum homogenous weight is 38.

Homogenous weight enumerator: w(x)=1x^0+352x^38+530x^40+498x^42+290x^44+228x^46+97x^48+42x^50+10x^52

The gray image is a code over GF(2) with n=168, k=11 and d=76.
This code was found by Heurico 1.16 in 50.7 seconds.