The generator matrix

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

generates a code of length 85 over Z8 who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+72x^77+332x^78+384x^79+666x^80+600x^81+756x^82+576x^83+747x^84+560x^85+640x^86+484x^87+549x^88+380x^89+404x^90+272x^91+251x^92+160x^93+158x^94+68x^95+72x^96+20x^97+12x^98+8x^99+16x^100+2x^102+2x^108

The gray image is a code over GF(2) with n=340, k=13 and d=154.
This code was found by Heurico 1.16 in 2.87 seconds.