The generator matrix

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

generates a code of length 67 over Z8 who´s minimum homogenous weight is 67.

Homogenous weight enumerator: w(x)=1x^0+32x^67+6x^68+16x^69+8x^70+1x^72

The gray image is a code over GF(2) with n=268, k=6 and d=134.
This code was found by Heurico 1.16 in 0.137 seconds.