The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  2  2  2  2  2  2  1  1  1  1  1  1  1  1  2  2  2  2  2  2  2  4  4  4  4  4  4  4  2  0  0  0  0  0  0  0  1  1  1  1  1  1
 0  4  0  0  0  4  4  4  0  0  0  4  0  4  4  4  0  0  0  4  0  4  4  4  0  0  4  4  0  4  4  0  0  0  4  0  4  4  4  0  0  4  4  0  4  4  0  0  4  4  0  4  4  0  4  4  4  4  0  0  0  0  0  0  4  0  4
 0  0  4  0  4  4  4  0  0  0  4  4  4  4  0  0  0  0  4  4  4  4  0  0  0  4  4  0  4  4  0  0  0  4  4  4  4  0  0  0  4  4  0  4  4  0  0  4  4  0  4  4  0  0  0  0  4  4  4  4  0  0  0  4  4  4  4
 0  0  0  4  4  0  4  4  0  4  4  0  0  4  4  0  0  4  4  0  0  4  4  0  4  4  0  0  0  4  4  0  4  4  0  0  4  4  0  4  4  0  0  0  4  4  4  4  0  0  0  4  4  0  0  4  4  0  0  4  4  0  4  4  0  0  0

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

Homogenous weight enumerator: w(x)=1x^0+32x^67+23x^68+7x^72+1x^76

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 0.115 seconds.