The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 37.

Homogenous weight enumerator: w(x)=1x^0+234x^37+384x^38+406x^39+466x^40+424x^41+486x^42+442x^43+344x^44+260x^45+230x^46+202x^47+109x^48+72x^49+18x^50+6x^51+8x^52+2x^53+2x^54

The gray image is a code over GF(2) with n=168, k=12 and d=74.
This code was found by Heurico 1.16 in 0.509 seconds.