The generator matrix

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

generates a code of length 55 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+77x^48+136x^49+189x^50+350x^51+346x^52+366x^53+449x^54+420x^55+387x^56+330x^57+373x^58+284x^59+121x^60+114x^61+63x^62+20x^63+21x^64+14x^65+10x^66+14x^67+5x^68+2x^72+4x^74

The gray image is a code over GF(2) with n=220, k=12 and d=96.
This code was found by Heurico 1.16 in 0.62 seconds.