The generator matrix

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

generates a code of length 97 over Z8 who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+31x^84+82x^85+220x^86+368x^87+665x^88+820x^89+1046x^90+1332x^91+1459x^92+2006x^93+2169x^94+2348x^95+2669x^96+2554x^97+2664x^98+2416x^99+2115x^100+1852x^101+1500x^102+1378x^103+997x^104+744x^105+446x^106+292x^107+204x^108+118x^109+118x^110+48x^111+32x^112+10x^113+20x^114+8x^115+12x^116+6x^117+8x^118+2x^119+4x^120+3x^124+1x^126

The gray image is a code over GF(2) with n=388, k=15 and d=168.
This code was found by Heurico 1.16 in 62.5 seconds.