The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+178x^51+327x^52+482x^53+662x^54+632x^55+760x^56+820x^57+753x^58+730x^59+659x^60+676x^61+549x^62+350x^63+268x^64+142x^65+75x^66+54x^67+26x^68+22x^69+9x^70+6x^71+7x^72+2x^73+2x^75

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 16.5 seconds.