The generator matrix

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

generates a code of length 67 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+190x^58+604x^59+958x^60+1450x^61+1723x^62+2168x^63+2186x^64+2922x^65+2562x^66+3176x^67+2788x^68+2990x^69+2316x^70+2194x^71+1478x^72+1246x^73+804x^74+460x^75+250x^76+144x^77+81x^78+36x^79+15x^80+16x^81+4x^82+4x^84+2x^87

The gray image is a code over GF(2) with n=268, k=15 and d=116.
This code was found by Heurico 1.11 in 15.1 seconds.