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

generates a code of length 86 over Z8 who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+70x^77+118x^78+172x^79+198x^80+220x^81+327x^82+278x^83+267x^84+318x^85+383x^86+322x^87+247x^88+258x^89+199x^90+182x^91+113x^92+114x^93+70x^94+42x^95+58x^96+32x^97+36x^98+28x^99+8x^100+10x^101+16x^102+4x^104+2x^105+2x^106+1x^126

The gray image is a code over GF(2) with n=344, k=12 and d=154.
This code was found by Heurico 1.16 in 69.9 seconds.