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

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

Homogenous weight enumerator: w(x)=1x^0+227x^80+320x^81+443x^82+376x^83+485x^84+342x^85+347x^86+250x^87+247x^88+198x^89+238x^90+124x^91+115x^92+100x^93+79x^94+34x^95+65x^96+22x^97+39x^98+16x^99+4x^100+10x^101+5x^102+8x^104+1x^110

The gray image is a code over GF(2) with n=344, k=12 and d=160.
This code was found by Heurico 1.16 in 2.34 seconds.