The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+216x^37+349x^38+518x^39+410x^40+476x^41+400x^42+456x^43+310x^44+372x^45+194x^46+182x^47+89x^48+68x^49+32x^50+12x^51+6x^52+4x^53+1x^54

The gray image is a code over GF(2) with n=168, k=12 and d=74.
This code was found by Heurico 1.11 in 5.27 seconds.