The generator matrix

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

generates a code of length 97 over Z8 who´s minimum homogenous weight is 86.

Homogenous weight enumerator: w(x)=1x^0+257x^86+260x^87+655x^88+708x^89+1273x^90+1400x^91+1681x^92+2004x^93+2209x^94+2472x^95+2316x^96+2696x^97+2255x^98+2532x^99+2050x^100+2052x^101+1606x^102+1304x^103+1018x^104+640x^105+551x^106+212x^107+259x^108+88x^109+143x^110+12x^111+63x^112+4x^113+15x^114+18x^116+9x^118+3x^120+2x^122

The gray image is a code over GF(2) with n=388, k=15 and d=172.
This code was found by Heurico 1.16 in 71.4 seconds.