The generator matrix

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

generates a code of length 86 over Z8 who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+234x^76+460x^77+944x^78+1112x^79+1504x^80+1560x^81+2226x^82+2096x^83+2547x^84+2384x^85+2706x^86+2564x^87+2715x^88+2172x^89+1952x^90+1552x^91+1281x^92+940x^93+792x^94+396x^95+299x^96+100x^97+126x^98+24x^99+47x^100+22x^102+9x^104+3x^108

The gray image is a code over GF(2) with n=344, k=15 and d=152.
This code was found by Heurico 1.16 in 48.4 seconds.