The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1
 0  2  0  2  0  0  6  6  0  0  2  2  0  0  6  6  4  4  2  6  4  4  6  2  4  4  2  6  4  4  6  2  0  4  2  6  0  0  6  6  0  2  2  4  4  2  0  2  6  6  4  0  0  4  0
 0  0  2  2  0  6  6  0  4  6  6  4  4  2  2  4  4  2  2  0  4  2  6  4  0  6  6  4  0  6  2  0  0  2  2  0  0  6  2  4  4  2  4  2  4  6  6  0  0  4  6  2  4  4  0
 0  0  0  4  4  4  0  4  4  0  4  0  0  4  0  4  0  0  0  0  4  4  4  4  4  4  0  0  0  0  4  4  0  0  0  0  4  4  4  4  4  4  0  4  0  0  0  4  4  0  4  0  0  4  0

generates a code of length 55 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+28x^52+68x^54+64x^55+69x^56+20x^58+5x^60+1x^108

The gray image is a code over GF(2) with n=220, k=8 and d=104.
This code was found by Heurico 1.16 in 0.0568 seconds.