The generator matrix

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

generates a code of length 34 over Z8 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+192x^30+192x^31+350x^32+244x^33+320x^34+164x^35+184x^36+104x^37+152x^38+56x^39+70x^40+4x^41+8x^42+4x^43+3x^48

The gray image is a code over GF(2) with n=136, k=11 and d=60.
This code was found by Heurico 1.11 in 32.8 seconds.