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

generates a code of length 99 over Z8 who´s minimum homogenous weight is 89.

Homogenous weight enumerator: w(x)=1x^0+66x^89+88x^90+104x^91+113x^92+180x^93+257x^94+274x^95+268x^96+276x^97+348x^98+338x^99+313x^100+306x^101+278x^102+188x^103+153x^104+108x^105+125x^106+76x^107+24x^108+56x^109+37x^110+34x^111+15x^112+28x^113+14x^114+10x^115+5x^116+2x^117+4x^118+3x^120+2x^121+1x^122+1x^156

The gray image is a code over GF(2) with n=396, k=12 and d=178.
This code was found by Heurico 1.16 in 46.4 seconds.