The generator matrix

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

generates a code of length 98 over Z8 who´s minimum homogenous weight is 86.

Homogenous weight enumerator: w(x)=1x^0+73x^86+212x^87+355x^88+642x^89+744x^90+1198x^91+1223x^92+1910x^93+1759x^94+2454x^95+2044x^96+2810x^97+2151x^98+2970x^99+2028x^100+2482x^101+1623x^102+1758x^103+1170x^104+1112x^105+622x^106+504x^107+265x^108+220x^109+159x^110+104x^111+67x^112+36x^113+33x^114+8x^115+12x^116+4x^117+2x^118+8x^119+3x^120+2x^122

The gray image is a code over GF(2) with n=392, k=15 and d=172.
This code was found by Heurico 1.16 in 64 seconds.