The generator matrix

 1  0  0  0  1  1  1  0  0  4  1  1  1  0  1  4  1  1  1  1  4  0  6  0  4  1  1  1  1  2  1  4  1  2  1  4  1  6  1  6  4  2  2  1  1  1  1  2  0  1  2  6  6  1  1  1  6  1  1  1  1  1  1  1  0  6  0  4  2  0  1  1  1  6  1  1  1  2  6  2  1  2  0  6  0  1
 0  1  0  0  0  1  1  1  4  1  1  0  5  1  0  1  4  7  7  6  2  1  1  2  1  2  5  2  5  6  2  1  0  1  2  4  3  1  3  6  1  1  1  3  7  5  4  4  1  6  1  1  1  6  2  4  1  4  0  5  6  1  0  2  0  0  1  1  0  6  2  0  2  1  0  4  4  2  2  1  3  1  2  1  1  0
 0  0  1  0  1  4  5  1  1  0  0  4  1  7  3  3  1  1  0  4  1  4  3  1  6  3  3  6  2  4  1  7  2  4  7  1  2  2  1  1  5  5  0  7  4  2  6  1  5  4  1  2  4  6  2  0  5  6  4  1  5  1  6  0  6  1  6  4  1  6  4  2  4  4  1  7  7  0  1  3  3  7  1  2  3  1
 0  0  0  1  4  0  4  4  1  7  3  7  7  3  3  4  3  0  7  4  5  1  5  2  0  0  1  5  4  1  3  6  2  3  2  6  5  6  1  5  2  7  6  0  1  2  5  6  7  3  5  3  0  3  0  1  2  7  6  1  5  2  4  6  1  3  3  2  5  1  7  1  5  4  6  6  3  1  5  3  6  4  3  0  5  3

generates a code of length 86 over Z8 who´s minimum homogenous weight is 80.

Homogenous weight enumerator: w(x)=1x^0+329x^80+100x^81+720x^82+124x^83+666x^84+76x^85+590x^86+48x^87+466x^88+76x^89+304x^90+40x^91+235x^92+24x^93+130x^94+8x^95+76x^96+4x^97+36x^98+4x^99+14x^100+4x^101+12x^102+4x^104+4x^105+1x^108

The gray image is a code over GF(2) with n=344, k=12 and d=160.
This code was found by Heurico 1.11 in 0.757 seconds.