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

generates a code of length 91 over Z8 who´s minimum homogenous weight is 80.

Homogenous weight enumerator: w(x)=1x^0+74x^80+102x^82+32x^83+340x^84+80x^85+228x^86+96x^87+373x^88+176x^89+432x^90+256x^91+501x^92+176x^93+300x^94+96x^95+286x^96+80x^97+202x^98+32x^99+153x^100+16x^102+24x^104+25x^108+9x^112+4x^116+1x^120+1x^132

The gray image is a code over GF(2) with n=364, k=12 and d=160.
This code was found by Heurico 1.16 in 2.12 seconds.