The generator matrix

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

generates a code of length 58 over Z8 who´s minimum homogenous weight is 51.

Homogenous weight enumerator: w(x)=1x^0+142x^51+273x^52+590x^53+594x^54+744x^55+704x^56+972x^57+636x^58+808x^59+579x^60+594x^61+407x^62+484x^63+271x^64+184x^65+82x^66+74x^67+22x^68+12x^69+9x^70+4x^71+6x^72

The gray image is a code over GF(2) with n=232, k=13 and d=102.
This code was found by Heurico 1.16 in 1.8 seconds.