The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 34.

Homogenous weight enumerator: w(x)=1x^0+236x^34+56x^35+565x^36+380x^37+1208x^38+932x^39+1980x^40+1740x^41+2299x^42+1620x^43+1971x^44+1012x^45+1250x^46+332x^47+461x^48+68x^49+176x^50+4x^51+71x^52+14x^54+6x^56+1x^58+1x^60

The gray image is a code over GF(2) with n=168, k=14 and d=68.
This code was found by Heurico 1.16 in 53 seconds.