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

generates a code of length 85 over Z8 who´s minimum homogenous weight is 79.

Homogenous weight enumerator: w(x)=1x^0+208x^79+336x^80+488x^81+411x^82+372x^83+400x^84+326x^85+209x^86+258x^87+211x^88+206x^89+150x^90+132x^91+86x^92+84x^93+70x^94+62x^95+22x^96+26x^97+15x^98+8x^99+8x^100+6x^101+1x^102

The gray image is a code over GF(2) with n=340, k=12 and d=158.
This code was found by Heurico 1.16 in 2.3 seconds.