The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+136x^76+540x^77+885x^78+1102x^79+1489x^80+1896x^81+2125x^82+2142x^83+2343x^84+2588x^85+2551x^86+2584x^87+2514x^88+2276x^89+1926x^90+1592x^91+1268x^92+958x^93+759x^94+472x^95+250x^96+176x^97+101x^98+38x^99+29x^100+14x^101+5x^102+6x^103+2x^104

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 46 seconds.