The generator matrix

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

generates a code of length 68 over Z8 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+64x^60+208x^61+329x^62+600x^63+539x^64+766x^65+634x^66+808x^67+621x^68+810x^69+528x^70+660x^71+450x^72+428x^73+256x^74+208x^75+88x^76+86x^77+33x^78+28x^79+26x^80+4x^81+6x^82+3x^84+6x^86+2x^89

The gray image is a code over GF(2) with n=272, k=13 and d=120.
This code was found by Heurico 1.16 in 2.45 seconds.