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

generates a code of length 91 over Z8 who´s minimum homogenous weight is 89.

Homogenous weight enumerator: w(x)=1x^0+28x^89+23x^90+160x^91+24x^92+8x^94+7x^96+4x^105+1x^122

The gray image is a code over GF(2) with n=364, k=8 and d=178.
This code was found by Heurico 1.16 in 0.526 seconds.