The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+68x^77+107x^78+76x^79+82x^80+60x^81+18x^82+36x^83+41x^84+14x^85+3x^86+1x^88+1x^92+2x^101+1x^104+1x^112

The gray image is a code over GF(2) with n=320, k=9 and d=154.
This code was found by Heurico 1.16 in 0.273 seconds.