The generator matrix

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

generates a code of length 80 over Z8 who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+34x^77+112x^78+104x^79+84x^80+72x^81+37x^82+32x^83+5x^84+10x^85+9x^86+4x^88+1x^90+1x^92+4x^93+1x^94+1x^104

The gray image is a code over GF(2) with n=320, k=9 and d=154.
This code was found by Heurico 1.11 in 0.345 seconds.