The generator matrix

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

generates a code of length 84 over Z8 who´s minimum homogenous weight is 79.

Homogenous weight enumerator: w(x)=1x^0+214x^79+126x^80+378x^81+152x^82+326x^83+65x^84+216x^85+45x^86+164x^87+52x^88+102x^89+28x^90+38x^91+21x^92+44x^93+13x^94+36x^95+5x^96+12x^97+2x^98+4x^99+2x^103+2x^104

The gray image is a code over GF(2) with n=336, k=11 and d=158.
This code was found by Heurico 1.16 in 7.92 seconds.